251472519742 has 8 divisors (see below), whose sum is σ = 390215979000. Its totient is φ = 121400526744.

The previous prime is 251472519709. The next prime is 251472519769. The reversal of 251472519742 is 247915274152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2167866492 + ... + 2167866607.

It is an arithmetic number, because the mean of its divisors is an integer number (48776997375).

Almost surely, 2^251472519742 is an apocalyptic number.

251472519742 is a deficient number, since it is larger than the sum of its proper divisors (138743459258).

251472519742 is a wasteful number, since it uses less digits than its factorization.

251472519742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4335733130.

The product of its digits is 1411200, while the sum is 49.

It can be divided in two parts, 2514 and 72519742, that added together give a square (72522256 = 8516²).

The spelling of 251472519742 in words is "two hundred fifty-one billion, four hundred seventy-two million, five hundred nineteen thousand, seven hundred forty-two".