1652537779138 has 16 divisors (see below), whose sum is σ = 2482291934784. Its totient is φ = 825107746320.

The previous prime is 1652537779031. The next prime is 1652537779163. The reversal of 1652537779138 is 8319777352561.

It is a super-2 number, since 2×1652537779138² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1652537779138.

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, 5316868 + ... + 5619088.

It is an arithmetic number, because the mean of its divisors is an integer number (155143245924).

Almost surely, 2^{1652537779138} is an apocalyptic number.

1652537779138 is a deficient number, since it is larger than the sum of its proper divisors (829754155646).

1652537779138 is a wasteful number, since it uses less digits than its factorization.

1652537779138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306057.

The product of its digits is 66679200, while the sum is 64.

The spelling of 1652537779138 in words is "one trillion, six hundred fifty-two billion, five hundred thirty-seven million, seven hundred seventy-nine thousand, one hundred thirty-eight".