85026291520 has 56 divisors (see below), whose sum is σ = 214378803144. Its totient is φ = 32009895936.

The previous prime is 85026291481. The next prime is 85026291527. The reversal of 85026291520 is 2519262058.

It can be written as a sum of positive squares in 4 ways, for example, as 29126200896 + 55900090624 = 170664^2 + 236432^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85026291527) 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, 7809477 + ... + 7820356.

Almost surely, 2^85026291520 is an apocalyptic number.

85026291520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

85026291520 is an abundant number, since it is smaller than the sum of its proper divisors (129352511624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85026291520 is a wasteful number, since it uses less digits than its factorization.

85026291520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15629867 (or 15629857 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 85026291520 in words is "eighty-five billion, twenty-six million, two hundred ninety-one thousand, five hundred twenty".