78310094677 has 4 divisors (see below), whose sum is σ = 78414369856. Its totient is φ = 78205819500.

The previous prime is 78310094657. The next prime is 78310094693. The reversal of 78310094677 is 77649001387.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77649001387 = 17033 ⋅4558739.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78310094677 is a prime.

It is a super-2 number, since 2×78310094677² (a number of 23 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 (78310094647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52136463 + ... + 52137964.

It is an arithmetic number, because the mean of its divisors is an integer number (19603592464).

Almost surely, 2^78310094677 is an apocalyptic number.

It is an amenable number.

78310094677 is a deficient number, since it is larger than the sum of its proper divisors (104275179).

78310094677 is a wasteful number, since it uses less digits than its factorization.

78310094677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104275178.

The product of its (nonzero) digits is 1778112, while the sum is 52.

The spelling of 78310094677 in words is "seventy-eight billion, three hundred ten million, ninety-four thousand, six hundred seventy-seven".