85402637913 has 8 divisors (see below), whose sum is σ = 114689394400. Its totient is φ = 56525486688.

The previous prime is 85402637909. The next prime is 85402637923. The reversal of 85402637913 is 31973620458.

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

It is not a de Polignac number, because 85402637913 - 2² = 85402637909 is a prime.

It is a super-2 number, since 2×85402637913² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85402637923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102400828 + ... + 102401661.

It is an arithmetic number, because the mean of its divisors is an integer number (14336174300).

It is a 1-persistent number, because it is pandigital, but 2⋅85402637913 = 170805275826 is not.

Almost surely, 2^85402637913 is an apocalyptic number.

It is an amenable number.

85402637913 is a deficient number, since it is larger than the sum of its proper divisors (29286756487).

85402637913 is a wasteful number, since it uses less digits than its factorization.

85402637913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204802631.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 85402637913 in words is "eighty-five billion, four hundred two million, six hundred thirty-seven thousand, nine hundred thirteen".