4640387748525 has 36 divisors (see below), whose sum is σ = 8329479418260. Its totient is φ = 2469504921600.

The previous prime is 4640387748517. The next prime is 4640387748539. The reversal of 4640387748525 is 5258477830464.

4640387748525 is a `hidden beast` number, since 4 + 6 + 4 + 0 + 38 + 7 + 74 + 8 + 525 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 8448734889 + 4631939013636 = 91917^2 + 2152194^2 .

It is not a de Polignac number, because 4640387748525 - 2³ = 4640387748517 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 22264980 + ... + 22472429.

It is an arithmetic number, because the mean of its divisors is an integer number (231374428285).

Almost surely, 2^{4640387748525} is an apocalyptic number.

4640387748525 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4640387748525 is a deficient number, since it is larger than the sum of its proper divisors (3689091669735).

4640387748525 is a wasteful number, since it uses less digits than its factorization.

4640387748525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44737886 (or 44737878 counting only the distinct ones).

The product of its (nonzero) digits is 180633600, while the sum is 63.

The spelling of 4640387748525 in words is "four trillion, six hundred forty billion, three hundred eighty-seven million, seven hundred forty-eight thousand, five hundred twenty-five".