85371738240 has 128 divisors (see below), whose sum is σ = 280900753920. Its totient is φ = 22031400960.

The previous prime is 85371738229. The next prime is 85371738253. The reversal of 85371738240 is 4283717358.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 85371738240.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 657649 + ... + 776688.

It is an arithmetic number, because the mean of its divisors is an integer number (2194537140).

Almost surely, 2^85371738240 is an apocalyptic number.

85371738240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

85371738240 is an abundant number, since it is smaller than the sum of its proper divisors (195529015680).

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

85371738240 is a wasteful number, since it uses less digits than its factorization.

85371738240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434390 (or 1434378 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 85371738240 in words is "eighty-five billion, three hundred seventy-one million, seven hundred thirty-eight thousand, two hundred forty".