78462651681137 has 8 divisors (see below), whose sum is σ = 79428625436160. Its totient is φ = 77500386079600.

The previous prime is 78462651681091. The next prime is 78462651681149. The reversal of 78462651681137 is 73118615626487.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78462651681137 - 2²⁸ = 78462383245681 is a prime.

It is a super-2 number, since 2×78462651681137² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78462651681187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 926995793 + ... + 927080430.

It is an arithmetic number, because the mean of its divisors is an integer number (9928578179520).

Almost surely, 2^{78462651681137} is an apocalyptic number.

It is an amenable number.

78462651681137 is a deficient number, since it is larger than the sum of its proper divisors (965973755023).

78462651681137 is a wasteful number, since it uses less digits than its factorization.

78462651681137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854076743.

The product of its digits is 81285120, while the sum is 65.

The spelling of 78462651681137 in words is "seventy-eight trillion, four hundred sixty-two billion, six hundred fifty-one million, six hundred eighty-one thousand, one hundred thirty-seven".