85723402623 has 16 divisors (see below), whose sum is σ = 116550701280. Its totient is φ = 56024302464.

The previous prime is 85723402591. The next prime is 85723402637. The reversal of 85723402623 is 32620432758.

It is not a de Polignac number, because 85723402623 - 2⁵ = 85723402591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85723404623) 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, 29368 + ... + 415101.

It is an arithmetic number, because the mean of its divisors is an integer number (7284418830).

Almost surely, 2^85723402623 is an apocalyptic number.

85723402623 is a deficient number, since it is larger than the sum of its proper divisors (30827298657).

85723402623 is a wasteful number, since it uses less digits than its factorization.

85723402623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445738.

The product of its (nonzero) digits is 483840, while the sum is 42.

The spelling of 85723402623 in words is "eighty-five billion, seven hundred twenty-three million, four hundred two thousand, six hundred twenty-three".