49695191280 has 480 divisors, whose sum is σ = 199706217984. Its totient is φ = 11249445888.

The previous prime is 49695191263. The next prime is 49695191303. The reversal of 49695191280 is 8219159694.

49695191280 is a `hidden beast` number, since 4 + 96 + 95 + 191 + 280 = 666.

It is a super-2 number, since 2×49695191280² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14558854 + ... + 14562266.

Almost surely, 2^49695191280 is an apocalyptic number.

49695191280 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 49695191280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99853108992).

49695191280 is an abundant number, since it is smaller than the sum of its proper divisors (150011026704).

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

49695191280 is a wasteful number, since it uses less digits than its factorization.

49695191280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3555 (or 3537 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The spelling of 49695191280 in words is "forty-nine billion, six hundred ninety-five million, one hundred ninety-one thousand, two hundred eighty".