49154621040 has 320 divisors, whose sum is σ = 197151667200. Its totient is φ = 11023174656.

The previous prime is 49154620973. The next prime is 49154621041. The reversal of 49154621040 is 4012645194.

49154621040 is a `hidden beast` number, since 4 + 9 + 1 + 546 + 2 + 104 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 49154620986 and 49154621004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49154621041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 770691 + ... + 832029.

It is an arithmetic number, because the mean of its divisors is an integer number (616098960).

Almost surely, 2^49154621040 is an apocalyptic number.

49154621040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49154621040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98575833600).

49154621040 is an abundant number, since it is smaller than the sum of its proper divisors (147997046160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49154621040 is a wasteful number, since it uses less digits than its factorization.

49154621040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61421 (or 61409 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 49154621040 in words is "forty-nine billion, one hundred fifty-four million, six hundred twenty-one thousand, forty".