19675235620 has 48 divisors (see below), whose sum is σ = 42694299648. Its totient is φ = 7608458880.

The previous prime is 19675235603. The next prime is 19675235639. The reversal of 19675235620 is 2653257691.

It is a super-2 number, since 2×19675235620² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 612397 + ... + 643723.

It is an arithmetic number, because the mean of its divisors is an integer number (889464576).

Almost surely, 2^19675235620 is an apocalyptic number.

19675235620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19675235620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21347149824).

19675235620 is an abundant number, since it is smaller than the sum of its proper divisors (23019064028).

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

19675235620 is a wasteful number, since it uses less digits than its factorization.

19675235620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32380 (or 32378 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 46.

The spelling of 19675235620 in words is "nineteen billion, six hundred seventy-five million, two hundred thirty-five thousand, six hundred twenty".