642274460633 has 8 divisors (see below), whose sum is σ = 692485416000. Its totient is φ = 592178537808.

The previous prime is 642274460629. The next prime is 642274460657. The reversal of 642274460633 is 336064472246.

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

It is not a de Polignac number, because 642274460633 - 2² = 642274460629 is a prime.

It is a super-2 number, since 2×642274460633² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (642274469633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28746533 + ... + 28768866.

It is an arithmetic number, because the mean of its divisors is an integer number (86560677000).

Almost surely, 2^642274460633 is an apocalyptic number.

It is an amenable number.

642274460633 is a deficient number, since it is larger than the sum of its proper divisors (50210955367).

642274460633 is a wasteful number, since it uses less digits than its factorization.

642274460633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57516271.

The product of its (nonzero) digits is 3483648, while the sum is 47.

The spelling of 642274460633 in words is "six hundred forty-two billion, two hundred seventy-four million, four hundred sixty thousand, six hundred thirty-three".