19999999962 has 48 divisors (see below), whose sum is σ = 45902092392. Its totient is φ = 6271810560.

The previous prime is 19999999939. The next prime is 19999999967. The reversal of 19999999962 is 26999999991.

It can be written as a sum of positive squares in 4 ways, for example, as 19765266921 + 234733041 = 140589^2 + 15321^2 .

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (19999999967) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 769662 + ... + 795222.

Almost surely, 2^19999999962 is an apocalyptic number.

19999999962 is an abundant number, since it is smaller than the sum of its proper divisors (25902092430).

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

19999999962 is a wasteful number, since it uses less digits than its factorization.

19999999962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28143 (or 28140 counting only the distinct ones).

The product of its digits is 516560652, while the sum is 81.

The spelling of 19999999962 in words is "nineteen billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred sixty-two".