77052157883621 has 16 divisors (see below), whose sum is σ = 80855564169600. Its totient is φ = 73286945971008.

The previous prime is 77052157883609. The next prime is 77052157883647. The reversal of 77052157883621 is 12638875125077.

It is a cyclic number.

It is not a de Polignac number, because 77052157883621 - 2³⁴ = 77034978014437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77052157183621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3353150 + ... + 12858768.

It is an arithmetic number, because the mean of its divisors is an integer number (5053472760600).

Almost surely, 2^{77052157883621} is an apocalyptic number.

It is an amenable number.

77052157883621 is a deficient number, since it is larger than the sum of its proper divisors (3803406285979).

77052157883621 is a wasteful number, since it uses less digits than its factorization.

77052157883621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9507628.

The product of its (nonzero) digits is 39513600, while the sum is 62.

The spelling of 77052157883621 in words is "seventy-seven trillion, fifty-two billion, one hundred fifty-seven million, eight hundred eighty-three thousand, six hundred twenty-one".