642751034035 has 16 divisors (see below), whose sum is σ = 890914803552. Its totient is φ = 439957926400.

The previous prime is 642751033957. The next prime is 642751034063. The reversal of 642751034035 is 530430157246.

It is a happy number.

It is not a de Polignac number, because 642751034035 - 2²¹ = 642748936883 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343716196 + ... + 343718065.

It is an arithmetic number, because the mean of its divisors is an integer number (55682175222).

Almost surely, 2^642751034035 is an apocalyptic number.

642751034035 is a deficient number, since it is larger than the sum of its proper divisors (248163769517).

642751034035 is a wasteful number, since it uses less digits than its factorization.

642751034035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687434294.

The product of its (nonzero) digits is 302400, while the sum is 40.

The spelling of 642751034035 in words is "six hundred forty-two billion, seven hundred fifty-one million, thirty-four thousand, thirty-five".