1390372957545 has 64 divisors (see below), whose sum is σ = 2636641131264. Its totient is φ = 616757944320.

The previous prime is 1390372957543. The next prime is 1390372957573. The reversal of 1390372957545 is 5457592730931.

It is not a de Polignac number, because 1390372957545 - 2¹ = 1390372957543 is a prime.

It is a super-2 number, since 2×1390372957545² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1390372957543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2625724 + ... + 3110493.

It is an arithmetic number, because the mean of its divisors is an integer number (41197517676).

Almost surely, 2^{1390372957545} is an apocalyptic number.

1390372957545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1390372957545 is a deficient number, since it is larger than the sum of its proper divisors (1246268173719).

1390372957545 is a wasteful number, since it uses less digits than its factorization.

1390372957545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5736362.

The product of its (nonzero) digits is 35721000, while the sum is 60.

The spelling of 1390372957545 in words is "one trillion, three hundred ninety billion, three hundred seventy-two million, nine hundred fifty-seven thousand, five hundred forty-five".