19077568340 has 24 divisors (see below), whose sum is σ = 40994590560. Its totient is φ = 7453561248.

The previous prime is 19077568331. The next prime is 19077568379. The reversal of 19077568340 is 4386577091.

It is a super-2 number, since 2×19077568340² (a number of 21 digits) contains 22 as substring.

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, 11090750 + ... + 11092469.

It is an arithmetic number, because the mean of its divisors is an integer number (1708107940).

Almost surely, 2^19077568340 is an apocalyptic number.

19077568340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19077568340 is an abundant number, since it is smaller than the sum of its proper divisors (21917022220).

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

19077568340 is a wasteful number, since it uses less digits than its factorization.

19077568340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22183271 (or 22183269 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 50.

The spelling of 19077568340 in words is "nineteen billion, seventy-seven million, five hundred sixty-eight thousand, three hundred forty".