738508505725 has 12 divisors (see below), whose sum is σ = 915761274804. Its totient is φ = 590799883520.

The previous prime is 738508505717. The next prime is 738508505743. The reversal of 738508505725 is 527505805837.

It can be written as a sum of positive squares in 6 ways, for example, as 215915420889 + 522593084836 = 464667^2 + 722906^2 .

It is not a de Polignac number, because 738508505725 - 2³ = 738508505717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3730437 + ... + 3923413.

It is an arithmetic number, because the mean of its divisors is an integer number (76313439567).

Almost surely, 2^738508505725 is an apocalyptic number.

It is an amenable number.

738508505725 is a deficient number, since it is larger than the sum of its proper divisors (177252769079).

738508505725 is a wasteful number, since it uses less digits than its factorization.

738508505725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346064 (or 346059 counting only the distinct ones).

The product of its (nonzero) digits is 11760000, while the sum is 55.

The spelling of 738508505725 in words is "seven hundred thirty-eight billion, five hundred eight million, five hundred five thousand, seven hundred twenty-five".