1390539545920 has 168 divisors, whose sum is σ = 3917117875680. Its totient is φ = 468675486720.

The previous prime is 1390539545903. The next prime is 1390539545953. The reversal of 1390539545920 is 295459350931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173575 + ... + 1676665.

Almost surely, 2^{1390539545920} is an apocalyptic number.

1390539545920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1390539545920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1958558937840).

1390539545920 is an abundant number, since it is smaller than the sum of its proper divisors (2526578329760).

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

1390539545920 is a wasteful number, since it uses less digits than its factorization.

1390539545920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503181 (or 1503164 counting only the distinct ones).

The product of its (nonzero) digits is 6561000, while the sum is 55.

The spelling of 1390539545920 in words is "one trillion, three hundred ninety billion, five hundred thirty-nine million, five hundred forty-five thousand, nine hundred twenty".