12290946745 has 32 divisors (see below), whose sum is σ = 18505748736. Its totient is φ = 7613049600.

The previous prime is 12290946697. The next prime is 12290946761. The reversal of 12290946745 is 54764909221.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-12290946745 is a prime.

It is a super-3 number, since 3×12290946745³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41226 + ... + 162115.

It is an arithmetic number, because the mean of its divisors is an integer number (578304648).

Almost surely, 2^12290946745 is an apocalyptic number.

It is an amenable number.

12290946745 is a deficient number, since it is larger than the sum of its proper divisors (6214801991).

12290946745 is a wasteful number, since it uses less digits than its factorization.

12290946745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203521.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 12290946745 in words is "twelve billion, two hundred ninety million, nine hundred forty-six thousand, seven hundred forty-five".