7426642860 has 576 divisors, whose sum is σ = 29842176000. Its totient is φ = 1481421312.

The previous prime is 7426642843. The next prime is 7426642897. The reversal of 7426642860 is 682466247.

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

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 15249537 + ... + 15250023.

Almost surely, 2^7426642860 is an apocalyptic number.

7426642860 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 7426642860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14921088000).

7426642860 is an abundant number, since it is smaller than the sum of its proper divisors (22415533140).

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

7426642860 is a wasteful number, since it uses less digits than its factorization.

7426642860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555 (or 536 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The square root of 7426642860 is about 86177.9720114137. The cubic root of 7426642860 is about 1951.0310444923.

The spelling of 7426642860 in words is "seven billion, four hundred twenty-six million, six hundred forty-two thousand, eight hundred sixty".