1642037740858 has 32 divisors (see below), whose sum is σ = 2523907501632. Its totient is φ = 800790144000.

The previous prime is 1642037740813. The next prime is 1642037740907. The reversal of 1642037740858 is 8580477302461.

It is a junction number, because it is equal to n+sod(n) for n = 1642037740799 and 1642037740808.

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, 351386010 + ... + 351390682.

It is an arithmetic number, because the mean of its divisors is an integer number (78872109426).

Almost surely, 2^{1642037740858} is an apocalyptic number.

1642037740858 is a deficient number, since it is larger than the sum of its proper divisors (881869760774).

1642037740858 is a wasteful number, since it uses less digits than its factorization.

1642037740858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9630.

The product of its (nonzero) digits is 9031680, while the sum is 55.

The spelling of 1642037740858 in words is "one trillion, six hundred forty-two billion, thirty-seven million, seven hundred forty thousand, eight hundred fifty-eight".