537880591640 has 64 divisors (see below), whose sum is σ = 1443257256960. Its totient is φ = 176398104960.

The previous prime is 537880591627. The next prime is 537880591649. The reversal of 537880591640 is 46195088735.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537880591649) 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, 41754476 + ... + 41767355.

It is an arithmetic number, because the mean of its divisors is an integer number (22550894640).

Almost surely, 2^537880591640 is an apocalyptic number.

It is an amenable number.

537880591640 is an abundant number, since it is smaller than the sum of its proper divisors (905376665320).

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

537880591640 is a wasteful number, since it uses less digits than its factorization.

537880591640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83521872 (or 83521868 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 56.

The spelling of 537880591640 in words is "five hundred thirty-seven billion, eight hundred eighty million, five hundred ninety-one thousand, six hundred forty".