17940620402 has 16 divisors (see below), whose sum is σ = 28086886080. Its totient is φ = 8578489392.

The previous prime is 17940620377. The next prime is 17940620459. The reversal of 17940620402 is 20402604971.

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, 194168 + ... + 271260.

It is an arithmetic number, because the mean of its divisors is an integer number (1755430380).

Almost surely, 2^17940620402 is an apocalyptic number.

17940620402 is a deficient number, since it is larger than the sum of its proper divisors (10146265678).

17940620402 is a wasteful number, since it uses less digits than its factorization.

17940620402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82177.

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 17940620402 in words is "seventeen billion, nine hundred forty million, six hundred twenty thousand, four hundred two".