78072627431 has 8 divisors (see below), whose sum is σ = 79164878544. Its totient is φ = 76980991680.

The previous prime is 78072627427. The next prime is 78072627469. The reversal of 78072627431 is 13472627087.

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 78072627431 - 2² = 78072627427 is a prime.

It is a super-2 number, since 2×78072627431² (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 (78072627401) 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, 104696 + ... + 408786.

It is an arithmetic number, because the mean of its divisors is an integer number (9895609818).

Almost surely, 2^78072627431 is an apocalyptic number.

78072627431 is a deficient number, since it is larger than the sum of its proper divisors (1092251113).

78072627431 is a wasteful number, since it uses less digits than its factorization.

78072627431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307681.

The product of its (nonzero) digits is 790272, while the sum is 47.

The spelling of 78072627431 in words is "seventy-eight billion, seventy-two million, six hundred twenty-seven thousand, four hundred thirty-one".