77294315193 has 8 divisors (see below), whose sum is σ = 103176603648. Its totient is φ = 51470785104.

The previous prime is 77294315179. The next prime is 77294315213. The reversal of 77294315193 is 39151349277.

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

It is a de Polignac number, because none of the positive numbers 2^k-77294315193 is a prime.

It is a super-2 number, since 2×77294315193² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77294315143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14686521 + ... + 14691782.

It is an arithmetic number, because the mean of its divisors is an integer number (12897075456).

Almost surely, 2^77294315193 is an apocalyptic number.

It is an amenable number.

77294315193 is a deficient number, since it is larger than the sum of its proper divisors (25882288455).

77294315193 is a wasteful number, since it uses less digits than its factorization.

77294315193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29379183.

The product of its digits is 1428840, while the sum is 51.

The spelling of 77294315193 in words is "seventy-seven billion, two hundred ninety-four million, three hundred fifteen thousand, one hundred ninety-three".