20513622735274 has 16 divisors (see below), whose sum is σ = 31763148203520. Its totient is φ = 9925909156080.

The previous prime is 20513622735257. The next prime is 20513622735301. The reversal of 20513622735274 is 47253722631502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23445292 + ... + 24304504.

It is an arithmetic number, because the mean of its divisors is an integer number (1985196762720).

Almost surely, 2^{20513622735274} is an apocalyptic number.

20513622735274 is a deficient number, since it is larger than the sum of its proper divisors (11249525468246).

20513622735274 is a wasteful number, since it uses less digits than its factorization.

20513622735274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244325.

The product of its (nonzero) digits is 4233600, while the sum is 49.

The spelling of 20513622735274 in words is "twenty trillion, five hundred thirteen billion, six hundred twenty-two million, seven hundred thirty-five thousand, two hundred seventy-four".