456138952642 has 8 divisors (see below), whose sum is σ = 684460633356. Its totient is φ = 227985408192.

The previous prime is 456138952609. The next prime is 456138952699. The reversal of 456138952642 is 246259831654.

It can be written as a sum of positive squares in 2 ways, for example, as 453670949601 + 2468003041 = 673551^2 + 49679^2 .

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

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, 42027283 + ... + 42038134.

Almost surely, 2^456138952642 is an apocalyptic number.

456138952642 is a deficient number, since it is larger than the sum of its proper divisors (228321680714).

456138952642 is a wasteful number, since it uses less digits than its factorization.

456138952642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84068132.

The product of its digits is 12441600, while the sum is 55.

The spelling of 456138952642 in words is "four hundred fifty-six billion, one hundred thirty-eight million, nine hundred fifty-two thousand, six hundred forty-two".