18521625601348 has 12 divisors (see below), whose sum is σ = 32417926026640. Its totient is φ = 9259361022312.

The previous prime is 18521625601337. The next prime is 18521625601361. The reversal of 18521625601348 is 84310652612581.

It is a super-2 number, since 2×18521625601348² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18521625601295 and 18521625601304.

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 3 ways as a sum of consecutive naturals, for example, 362915886 + ... + 362966917.

Almost surely, 2^{18521625601348} is an apocalyptic number.

It is an amenable number.

18521625601348 is a deficient number, since it is larger than the sum of its proper divisors (13896300425292).

18521625601348 is a wasteful number, since it uses less digits than its factorization.

18521625601348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725889186 (or 725889184 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 52.

The spelling of 18521625601348 in words is "eighteen trillion, five hundred twenty-one billion, six hundred twenty-five million, six hundred one thousand, three hundred forty-eight".