85393932477 has 32 divisors (see below), whose sum is σ = 133666455552. Its totient is φ = 47468649024.

The previous prime is 85393932467. The next prime is 85393932487. The reversal of 85393932477 is 77423939358.

It is an interprime number because it is at equal distance from previous prime (85393932467) and next prime (85393932487).

It is not a de Polignac number, because 85393932477 - 2⁴ = 85393932461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85393932477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85393932467) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8000098 + ... + 8010764.

It is an arithmetic number, because the mean of its divisors is an integer number (4177076736).

Almost surely, 2^85393932477 is an apocalyptic number.

It is an amenable number.

85393932477 is a deficient number, since it is larger than the sum of its proper divisors (48272523075).

85393932477 is a wasteful number, since it uses less digits than its factorization.

85393932477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21017.

The product of its digits is 34292160, while the sum is 60.

The spelling of 85393932477 in words is "eighty-five billion, three hundred ninety-three million, nine hundred thirty-two thousand, four hundred seventy-seven".