77741370251616 has 96 divisors (see below), whose sum is σ = 204285574886400. Its totient is φ = 25886567692800.

The previous prime is 77741370251609. The next prime is 77741370251659. The reversal of 77741370251616 is 61615207314777.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×77741370251616² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393749850 + ... + 393947238.

It is an arithmetic number, because the mean of its divisors is an integer number (2127974738400).

Almost surely, 2^{77741370251616} is an apocalyptic number.

It is an amenable number.

77741370251616 is an abundant number, since it is smaller than the sum of its proper divisors (126544204634784).

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

77741370251616 is a wasteful number, since it uses less digits than its factorization.

77741370251616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201692 (or 201684 counting only the distinct ones).

The product of its (nonzero) digits is 10372320, while the sum is 57.

The spelling of 77741370251616 in words is "seventy-seven trillion, seven hundred forty-one billion, three hundred seventy million, two hundred fifty-one thousand, six hundred sixteen".