642563000074 has 8 divisors (see below), whose sum is σ = 966144846240. Its totient is φ = 320514717996.

The previous prime is 642562999961. The next prime is 642563000077. The reversal of 642563000074 is 470000365246.

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

It is a junction number, because it is equal to n+sod(n) for n = 642562999997 and 642563000042.

It is not an unprimeable number, because it can be changed into a prime (642563000077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383389974 + ... + 383391649.

It is an arithmetic number, because the mean of its divisors is an integer number (120768105780).

Almost surely, 2^642563000074 is an apocalyptic number.

642563000074 is a deficient number, since it is larger than the sum of its proper divisors (323581846166).

642563000074 is a wasteful number, since it uses less digits than its factorization.

642563000074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766782044.

The product of its (nonzero) digits is 120960, while the sum is 37.

The spelling of 642563000074 in words is "six hundred forty-two billion, five hundred sixty-three million, seventy-four", and thus it is an aban number.