12940419546 has 20 divisors (see below), whose sum is σ = 28996125642. Its totient is φ = 4313473128.

The previous prime is 12940419521. The next prime is 12940419577. The reversal of 12940419546 is 64591404921.

12940419546 is a `hidden beast` number, since 1 + 2 + 94 + 0 + 4 + 19 + 546 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8712168921 + 4228250625 = 93339^2 + 65025^2 .

It is a super-2 number, since 2×12940419546² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 39939405 + ... + 39939728.

Almost surely, 2^12940419546 is an apocalyptic number.

12940419546 is an abundant number, since it is smaller than the sum of its proper divisors (16055706096).

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

12940419546 is an equidigital number, since it uses as much as digits as its factorization.

12940419546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79879147 (or 79879138 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 12940419546 in words is "twelve billion, nine hundred forty million, four hundred nineteen thousand, five hundred forty-six".