739506238889 has 6 divisors (see below), whose sum is σ = 812845700730. Its totient is φ = 672278398880.

The previous prime is 739506238879. The next prime is 739506238907. The reversal of 739506238889 is 988832605937.

It can be written as a sum of positive squares in only one way, i.e., 544742896489 + 194763342400 = 738067^2 + 441320^2 .

It is not a de Polignac number, because 739506238889 - 2²⁰ = 739505190313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (739506238819) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3055810784 + ... + 3055811025.

It is an arithmetic number, because the mean of its divisors is an integer number (135474283455).

Almost surely, 2^739506238889 is an apocalyptic number.

It is an amenable number.

739506238889 is a deficient number, since it is larger than the sum of its proper divisors (73339461841).

739506238889 is a wasteful number, since it uses less digits than its factorization.

739506238889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6111621831 (or 6111621820 counting only the distinct ones).

The product of its (nonzero) digits is 156764160, while the sum is 68.

The spelling of 739506238889 in words is "seven hundred thirty-nine billion, five hundred six million, two hundred thirty-eight thousand, eight hundred eighty-nine".