85428307023 has 16 divisors (see below), whose sum is σ = 114919318272. Its totient is φ = 56446992000.

The previous prime is 85428306979. The next prime is 85428307033. The reversal of 85428307023 is 32070382458.

It is not a de Polignac number, because 85428307023 - 2⁸ = 85428306767 is a prime.

It is a super-2 number, since 2×85428307023² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85428307033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127443 + ... + 432548.

It is an arithmetic number, because the mean of its divisors is an integer number (7182457392).

Almost surely, 2^85428307023 is an apocalyptic number.

85428307023 is a deficient number, since it is larger than the sum of its proper divisors (29491011249).

85428307023 is a wasteful number, since it uses less digits than its factorization.

85428307023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560446.

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 85428307023 in words is "eighty-five billion, four hundred twenty-eight million, three hundred seven thousand, twenty-three".