77007226157265 has 16 divisors (see below), whose sum is σ = 123419338530048. Its totient is φ = 41001261724416.

The previous prime is 77007226157201. The next prime is 77007226157291. The reversal of 77007226157265 is 56275162270077.

It is a happy number.

It is not a de Polignac number, because 77007226157265 - 2⁶ = 77007226157201 is a prime.

It is a super-2 number, since 2×77007226157265² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4328671609 + ... + 4328689398.

It is an arithmetic number, because the mean of its divisors is an integer number (7713708658128).

Almost surely, 2^{77007226157265} is an apocalyptic number.

It is an amenable number.

77007226157265 is a deficient number, since it is larger than the sum of its proper divisors (46412112372783).

77007226157265 is a wasteful number, since it uses less digits than its factorization.

77007226157265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8657361608.

The product of its (nonzero) digits is 17287200, while the sum is 57.

The spelling of 77007226157265 in words is "seventy-seven trillion, seven billion, two hundred twenty-six million, one hundred fifty-seven thousand, two hundred sixty-five".