642046676476 has 24 divisors (see below), whose sum is σ = 1151026758000. Its totient is φ = 313182441600.

The previous prime is 642046676471. The next prime is 642046676483. The reversal of 642046676476 is 674676640246.

It is a self number, because there is not a number n which added to its sum of digits gives 642046676476.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642046676471) 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, 6469591 + ... + 6568081.

It is an arithmetic number, because the mean of its divisors is an integer number (47959448250).

Almost surely, 2^642046676476 is an apocalyptic number.

It is an amenable number.

642046676476 is a deficient number, since it is larger than the sum of its proper divisors (508980081524).

642046676476 is a wasteful number, since it uses less digits than its factorization.

642046676476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138285 (or 138283 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 58.

The spelling of 642046676476 in words is "six hundred forty-two billion, forty-six million, six hundred seventy-six thousand, four hundred seventy-six".