642466483 has 12 divisors (see below), whose sum is σ = 675604128. Its totient is φ = 610500240.

The previous prime is 642466469. The next prime is 642466501. The reversal of 642466483 is 384664246.

It is not a de Polignac number, because 642466483 - 2²⁹ = 105595571 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (642466423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63718 + ... + 73108.

It is an arithmetic number, because the mean of its divisors is an integer number (56300344).

Almost surely, 2^642466483 is an apocalyptic number.

642466483 is the 13549-th centered heptagonal number.

642466483 is a deficient number, since it is larger than the sum of its proper divisors (33137645).

642466483 is an equidigital number, since it uses as much as digits as its factorization.

642466483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9514 (or 9471 counting only the distinct ones).

The product of its digits is 663552, while the sum is 43.

The square root of 642466483 is about 25346.9225548192. The cubic root of 642466483 is about 862.8795145062.

The spelling of 642466483 in words is "six hundred forty-two million, four hundred sixty-six thousand, four hundred eighty-three".