256307147450 has 24 divisors (see below), whose sum is σ = 476768672352. Its totient is φ = 102514820720.

The previous prime is 256307147449. The next prime is 256307147479. The reversal of 256307147450 is 54741703652.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 464987 + ... + 853713.

It is an arithmetic number, because the mean of its divisors is an integer number (19865361348).

Almost surely, 2^256307147450 is an apocalyptic number.

256307147450 is a deficient number, since it is larger than the sum of its proper divisors (220461524902).

256307147450 is a wasteful number, since it uses less digits than its factorization.

256307147450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401926 (or 401921 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 44.

The spelling of 256307147450 in words is "two hundred fifty-six billion, three hundred seven million, one hundred forty-seven thousand, four hundred fifty".