130649429138 has 6 divisors (see below), whose sum is σ = 195974910471. Its totient is φ = 65324458982.

The previous prime is 130649429123. The next prime is 130649429147. The reversal of 130649429138 is 831924946031.

It can be written as a sum of positive squares in only one way, i.e., 65324714569 + 65324714569 = 255587^2 + 255587^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=255587.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 383381 + ... + 638967.

Almost surely, 2^130649429138 is an apocalyptic number.

130649429138 is a deficient number, since it is larger than the sum of its proper divisors (65325481333).

130649429138 is an frugal number, since it uses more digits than its factorization.

130649429138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511176 (or 255589 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 50.

Multiplying 130649429138 by its sum of digits (50), we get a square (6532471456900 = 2555870²).

The spelling of 130649429138 in words is "one hundred thirty billion, six hundred forty-nine million, four hundred twenty-nine thousand, one hundred thirty-eight".