501501374107642 has 16 divisors (see below), whose sum is σ = 781420798996200. Its totient is φ = 241099530255360.

The previous prime is 501501374107639. The next prime is 501501374107691. The reversal of 501501374107642 is 246701473105105.

It can be written as a sum of positive squares in 4 ways, for example, as 340448294440081 + 161053079667561 = 18451241^2 + 12690669^2 .

It is a junction number, because it is equal to n+sod(n) for n = 501501374107592 and 501501374107601.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17938939167 + ... + 17938967122.

Almost surely, 2^{501501374107642} is an apocalyptic number.

501501374107642 is a deficient number, since it is larger than the sum of its proper divisors (279919424888558).

501501374107642 is a wasteful number, since it uses less digits than its factorization.

501501374107642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35877906561.

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 501501374107642 in words is "five hundred one trillion, five hundred one billion, three hundred seventy-four million, one hundred seven thousand, six hundred forty-two".