49311899280 has 800 divisors, whose sum is σ = 213248851200. Its totient is φ = 10304630784.

The previous prime is 49311899267. The next prime is 49311899281. The reversal of 49311899280 is 8299811394.

49311899280 is a `hidden beast` number, since 49 + 311 + 8 + 9 + 9 + 280 = 666.

It is a super-3 number, since 3×49311899280³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (49311899281) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 24992374 + ... + 24994346.

It is an arithmetic number, because the mean of its divisors is an integer number (266561064).

Almost surely, 2^49311899280 is an apocalyptic number.

49311899280 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 49311899280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106624425600).

49311899280 is an abundant number, since it is smaller than the sum of its proper divisors (163936951920).

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

49311899280 is a wasteful number, since it uses less digits than its factorization.

49311899280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053 (or 2038 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The spelling of 49311899280 in words is "forty-nine billion, three hundred eleven million, eight hundred ninety-nine thousand, two hundred eighty".