38784071225 has 6 divisors (see below), whose sum is σ = 48092248350. Its totient is φ = 31027256960.

The previous prime is 38784071191. The next prime is 38784071239. The reversal of 38784071225 is 52217048783.

It can be written as a sum of positive squares in 3 ways, for example, as 801569344 + 37982501881 = 28312^2 + 194891^2 .

It is not a de Polignac number, because 38784071225 - 2¹⁸ = 38783809081 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 38784071225.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 775681400 + ... + 775681449.

It is an arithmetic number, because the mean of its divisors is an integer number (8015374725).

Almost surely, 2^38784071225 is an apocalyptic number.

It is an amenable number.

38784071225 is a deficient number, since it is larger than the sum of its proper divisors (9308177125).

38784071225 is a wasteful number, since it uses less digits than its factorization.

38784071225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551362859 (or 1551362854 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 47.

The spelling of 38784071225 in words is "thirty-eight billion, seven hundred eighty-four million, seventy-one thousand, two hundred twenty-five".