139465985285240 has 32 divisors (see below), whose sum is σ = 313799103244080. Its totient is φ = 55786280984832.

The previous prime is 139465985285197. The next prime is 139465985285261. The reversal of 139465985285240 is 42582589564931.

It is a super-2 number, since 2×139465985285240² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18065507 + ... + 24602733.

Almost surely, 2^{139465985285240} is an apocalyptic number.

139465985285240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139465985285240 is an abundant number, since it is smaller than the sum of its proper divisors (174333117958840).

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

139465985285240 is a wasteful number, since it uses less digits than its factorization.

139465985285240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7070591 (or 7070587 counting only the distinct ones).

The product of its (nonzero) digits is 746496000, while the sum is 71.

The spelling of 139465985285240 in words is "one hundred thirty-nine trillion, four hundred sixty-five billion, nine hundred eighty-five million, two hundred eighty-five thousand, two hundred forty".