78116290737 has 48 divisors (see below), whose sum is σ = 114490634112. Its totient is φ = 47325358080.

The previous prime is 78116290727. The next prime is 78116290751. The reversal of 78116290737 is 73709261187.

It is not a de Polignac number, because 78116290737 - 2⁶ = 78116290673 is a prime.

It is a super-2 number, since 2×78116290737² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78116290737.

It is not an unprimeable number, because it can be changed into a prime (78116290727) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2831313 + ... + 2858769.

It is an arithmetic number, because the mean of its divisors is an integer number (2385221544).

Almost surely, 2^78116290737 is an apocalyptic number.

It is an amenable number.

78116290737 is a deficient number, since it is larger than the sum of its proper divisors (36374343375).

78116290737 is a wasteful number, since it uses less digits than its factorization.

78116290737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27606 (or 27587 counting only the distinct ones).

The product of its (nonzero) digits is 889056, while the sum is 51.

The spelling of 78116290737 in words is "seventy-eight billion, one hundred sixteen million, two hundred ninety thousand, seven hundred thirty-seven".