77232700044157 has 32 divisors (see below), whose sum is σ = 90514202296320. Its totient is φ = 64537995412800.

The previous prime is 77232700044121. The next prime is 77232700044169. The reversal of 77232700044157 is 75144000723277.

It is a de Polignac number, because none of the positive numbers 2^k-77232700044157 is a prime.

It is a super-2 number, since 2×77232700044157² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77232700044157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77232704044157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18614148 + ... + 22381954.

It is an arithmetic number, because the mean of its divisors is an integer number (2828568821760).

Almost surely, 2^{77232700044157} is an apocalyptic number.

It is an amenable number.

77232700044157 is a deficient number, since it is larger than the sum of its proper divisors (13281502252163).

77232700044157 is a wasteful number, since it uses less digits than its factorization.

77232700044157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3768361.

The product of its (nonzero) digits is 2304960, while the sum is 49.

The spelling of 77232700044157 in words is "seventy-seven trillion, two hundred thirty-two billion, seven hundred million, forty-four thousand, one hundred fifty-seven".