523351147978 has 32 divisors (see below), whose sum is σ = 830108260800. Its totient is φ = 246774439296.

The previous prime is 523351147967. The next prime is 523351147993. The reversal of 523351147978 is 879741153325.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59609593 + ... + 59618371.

It is an arithmetic number, because the mean of its divisors is an integer number (25940883150).

Almost surely, 2^523351147978 is an apocalyptic number.

523351147978 is a deficient number, since it is larger than the sum of its proper divisors (306757112822).

523351147978 is a wasteful number, since it uses less digits than its factorization.

523351147978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15766.

The product of its digits is 6350400, while the sum is 55.

The spelling of 523351147978 in words is "five hundred twenty-three billion, three hundred fifty-one million, one hundred forty-seven thousand, nine hundred seventy-eight".