6920872920 has 192 divisors, whose sum is σ = 24307002720. Its totient is φ = 1697697792.

The previous prime is 6920872897. The next prime is 6920872943. The reversal of 6920872920 is 292780296.

It is an interprime number because it is at equal distance from previous prime (6920872897) and next prime (6920872943).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1434352 + ... + 1439168.

Almost surely, 2^6920872920 is an apocalyptic number.

6920872920 is a gapful number since it is divisible by the number (60) 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 6920872920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12153501360).

6920872920 is an abundant number, since it is smaller than the sum of its proper divisors (17386129800).

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

6920872920 is a wasteful number, since it uses less digits than its factorization.

6920872920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5154 (or 5147 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 6920872920 is about 83191.7839693320. The cubic root of 6920872920 is about 1905.6960112001.

The spelling of 6920872920 in words is "six billion, nine hundred twenty million, eight hundred seventy-two thousand, nine hundred twenty".