77324514500509 has 32 divisors (see below), whose sum is σ = 80739997184000. Its totient is φ = 73990282788864.

The previous prime is 77324514500501. The next prime is 77324514500531. The reversal of 77324514500509 is 90500541542377.

It is not a de Polignac number, because 77324514500509 - 2³ = 77324514500501 is a prime.

It is a super-2 number, since 2×77324514500509² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77324514500501) 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, 505447972 + ... + 505600930.

It is an arithmetic number, because the mean of its divisors is an integer number (2523124912000).

Almost surely, 2^{77324514500509} is an apocalyptic number.

It is an amenable number.

77324514500509 is a deficient number, since it is larger than the sum of its proper divisors (3415482683491).

77324514500509 is a wasteful number, since it uses less digits than its factorization.

77324514500509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154037.

The product of its (nonzero) digits is 5292000, while the sum is 52.

The spelling of 77324514500509 in words is "seventy-seven trillion, three hundred twenty-four billion, five hundred fourteen million, five hundred thousand, five hundred nine".