19926467960 has 32 divisors (see below), whose sum is σ = 51239489760. Its totient is φ = 6831931776.

The previous prime is 19926467921. The next prime is 19926467989. The reversal of 19926467960 is 6976462991.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 19926467960.

It is a congruent number.

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, 35582699 + ... + 35583258.

It is an arithmetic number, because the mean of its divisors is an integer number (1601234055).

Almost surely, 2^19926467960 is an apocalyptic number.

19926467960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19926467960 is an abundant number, since it is smaller than the sum of its proper divisors (31313021800).

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

19926467960 is a wasteful number, since it uses less digits than its factorization.

19926467960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71165975 (or 71165971 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 59.

The spelling of 19926467960 in words is "nineteen billion, nine hundred twenty-six million, four hundred sixty-seven thousand, nine hundred sixty".