23891919387434 has 32 divisors (see below), whose sum is σ = 42387474355200. Its totient is φ = 9883617678720.

The previous prime is 23891919387373. The next prime is 23891919387461. The reversal of 23891919387434 is 43478391919832.

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, 70590179 + ... + 70927830.

It is an arithmetic number, because the mean of its divisors is an integer number (1324608573600).

Almost surely, 2^{23891919387434} is an apocalyptic number.

23891919387434 is a deficient number, since it is larger than the sum of its proper divisors (18495554967766).

23891919387434 is a wasteful number, since it uses less digits than its factorization.

23891919387434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141518438.

The product of its digits is 282175488, while the sum is 71.

The spelling of 23891919387434 in words is "twenty-three trillion, eight hundred ninety-one billion, nine hundred nineteen million, three hundred eighty-seven thousand, four hundred thirty-four".