361408621725 has 72 divisors (see below), whose sum is σ = 649719824000. Its totient is φ = 192038999040.

The previous prime is 361408621703. The next prime is 361408621807. The reversal of 361408621725 is 527126804163.

361408621725 is a `hidden beast` number, since 3 + 6 + 1 + 408 + 6 + 217 + 25 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-361408621725 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 75558684 + ... + 75563466.

Almost surely, 2^361408621725 is an apocalyptic number.

It is an amenable number.

361408621725 is a deficient number, since it is larger than the sum of its proper divisors (288311202275).

361408621725 is a wasteful number, since it uses less digits than its factorization.

361408621725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5971 (or 5963 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 361408621725 in words is "three hundred sixty-one billion, four hundred eight million, six hundred twenty-one thousand, seven hundred twenty-five".