19920000070 has 32 divisors (see below), whose sum is σ = 37994647968. Its totient is φ = 7493472768.

The previous prime is 19920000059. The next prime is 19920000073. The reversal of 19920000070 is 7000002991.

It is a junction number, because it is equal to n+sod(n) for n = 19919999993 and 19920000038.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19920000073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177364 + ... + 267016.

It is an arithmetic number, because the mean of its divisors is an integer number (1187332749).

Almost surely, 2^19920000070 is an apocalyptic number.

19920000070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19920000070 is a deficient number, since it is larger than the sum of its proper divisors (18074647898).

19920000070 is a wasteful number, since it uses less digits than its factorization.

19920000070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90984.

The product of its (nonzero) digits is 1134, while the sum is 28.

The spelling of 19920000070 in words is "nineteen billion, nine hundred twenty million, seventy", and thus it is an aban number.