20461964292 has 108 divisors (see below), whose sum is σ = 65637791856. Its totient is φ = 5314790880.

The previous prime is 20461964267. The next prime is 20461964293. The reversal of 20461964292 is 29246916402.

20461964292 is a `hidden beast` number, since 2 + 0 + 4 + 619 + 6 + 4 + 29 + 2 = 666.

It is a super-2 number, since 2×20461964292² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20461964293) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 507858 + ... + 546665.

It is an arithmetic number, because the mean of its divisors is an integer number (607757332).

Almost surely, 2^20461964292 is an apocalyptic number.

20461964292 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20461964292 is an abundant number, since it is smaller than the sum of its proper divisors (45175827564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20461964292 is a wasteful number, since it uses less digits than its factorization.

20461964292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054558 (or 1054546 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 20461964292 in words is "twenty billion, four hundred sixty-one million, nine hundred sixty-four thousand, two hundred ninety-two".