19940718702 has 16 divisors (see below), whose sum is σ = 39935122560. Its totient is φ = 6637958712.

The previous prime is 19940718673. The next prime is 19940718731. The reversal of 19940718702 is 20781704991.

It is an interprime number because it is at equal distance from previous prime (19940718673) and next prime (19940718731).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2232052 + ... + 2240967.

It is an arithmetic number, because the mean of its divisors is an integer number (2495945160).

Almost surely, 2^19940718702 is an apocalyptic number.

19940718702 is an abundant number, since it is smaller than the sum of its proper divisors (19994403858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19940718702 is a wasteful number, since it uses less digits than its factorization.

19940718702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4473767.

The product of its (nonzero) digits is 254016, while the sum is 48.

The spelling of 19940718702 in words is "nineteen billion, nine hundred forty million, seven hundred eighteen thousand, seven hundred two".