153947939044 has 9 divisors (see below), whose sum is σ = 269410266601. Its totient is φ = 76973577160.

The previous prime is 153947939029. The next prime is 153947939051. The reversal of 153947939044 is 440939749351.

The square root of 153947939044 is 392362.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 76597204644 + 77350734400 = 276762^2 + 278120^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 153947939044.

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, 686634 + ... + 882814.

Almost surely, 2^153947939044 is an apocalyptic number.

153947939044 is the 392362-nd square number.

It is an amenable number.

153947939044 is a deficient number, since it is larger than the sum of its proper divisors (115462327557).

153947939044 is an frugal number, since it uses more digits than its factorization.

153947939044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392366 (or 196183 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 58.

The spelling of 153947939044 in words is "one hundred fifty-three billion, nine hundred forty-seven million, nine hundred thirty-nine thousand, forty-four".