7421770860 has 96 divisors (see below), whose sum is σ = 23776273920. Its totient is φ = 1694504448.

The previous prime is 7421770859. The next prime is 7421770877. The reversal of 7421770860 is 680771247.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 384111 + ... + 402969.

It is an arithmetic number, because the mean of its divisors is an integer number (247669520).

Almost surely, 2^7421770860 is an apocalyptic number.

7421770860 is a gapful number since it is divisible by the number (70) 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 7421770860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11888136960).

7421770860 is an abundant number, since it is smaller than the sum of its proper divisors (16354503060).

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

7421770860 is a wasteful number, since it uses less digits than its factorization.

7421770860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19815 (or 19813 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 42.

The square root of 7421770860 is about 86149.7002896702. The cubic root of 7421770860 is about 1950.6043150015.

The spelling of 7421770860 in words is "seven billion, four hundred twenty-one million, seven hundred seventy thousand, eight hundred sixty".