12305437494 has 32 divisors (see below), whose sum is σ = 28133291520. Its totient is φ = 3515017152.

The previous prime is 12305437451. The next prime is 12305437517. The reversal of 12305437494 is 49473450321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160522 + ... + 224450.

It is an arithmetic number, because the mean of its divisors is an integer number (879165360).

Almost surely, 2^12305437494 is an apocalyptic number.

12305437494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12305437494 is an abundant number, since it is smaller than the sum of its proper divisors (15827854026).

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

12305437494 is a wasteful number, since it uses less digits than its factorization.

12305437494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68524.

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 12305437494 in words is "twelve billion, three hundred five million, four hundred thirty-seven thousand, four hundred ninety-four".