7855546940 has 48 divisors (see below), whose sum is σ = 17204484864. Its totient is φ = 3009484800.

The previous prime is 7855546931. The next prime is 7855546957. The reversal of 7855546940 is 496455587.

It is a congruent number.

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, 5171 + ... + 125450.

It is an arithmetic number, because the mean of its divisors is an integer number (358426768).

Almost surely, 2^7855546940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7855546940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8602242432).

7855546940 is an abundant number, since it is smaller than the sum of its proper divisors (9348937924).

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

7855546940 is a wasteful number, since it uses less digits than its factorization.

7855546940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130758 (or 130756 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 53.

The square root of 7855546940 is about 88631.5233988450. The cubic root of 7855546940 is about 1987.8890555432.

The spelling of 7855546940 in words is "seven billion, eight hundred fifty-five million, five hundred forty-six thousand, nine hundred forty".