20154261452 has 24 divisors (see below), whose sum is σ = 38699697456. Its totient is φ = 9126456768.

The previous prime is 20154261401. The next prime is 20154261467. The reversal of 20154261452 is 25416245102.

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, 3653678 + ... + 3659189.

It is an arithmetic number, because the mean of its divisors is an integer number (1612487394).

Almost surely, 2^20154261452 is an apocalyptic number.

It is an amenable number.

20154261452 is a deficient number, since it is larger than the sum of its proper divisors (18545436004).

20154261452 is a wasteful number, since it uses less digits than its factorization.

20154261452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7312937 (or 7312935 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The spelling of 20154261452 in words is "twenty billion, one hundred fifty-four million, two hundred sixty-one thousand, four hundred fifty-two".