49977806480 has 80 divisors (see below), whose sum is σ = 133689657600. Its totient is φ = 17020217856.

The previous prime is 49977806477. The next prime is 49977806491. The reversal of 49977806480 is 8460877994.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×49977806480² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216044 + ... + 382923.

It is an arithmetic number, because the mean of its divisors is an integer number (1671120720).

Almost surely, 2^49977806480 is an apocalyptic number.

49977806480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49977806480 is an abundant number, since it is smaller than the sum of its proper divisors (83711851120).

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

49977806480 is a wasteful number, since it uses less digits than its factorization.

49977806480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599136 (or 599130 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 62.

The spelling of 49977806480 in words is "forty-nine billion, nine hundred seventy-seven million, eight hundred six thousand, four hundred eighty".