7081877040 has 80 divisors (see below), whose sum is σ = 25090084608. Its totient is φ = 1618714368.

The previous prime is 7081877039. The next prime is 7081877059. The reversal of 7081877040 is 407781807.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 7081876983 and 7081877001.

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, 2106022 + ... + 2109381.

Almost surely, 2^7081877040 is an apocalyptic number.

7081877040 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7081877040 is an abundant number, since it is smaller than the sum of its proper divisors (18008207568).

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

7081877040 is a wasteful number, since it uses less digits than its factorization.

7081877040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4215426 (or 4215420 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 42.

The square root of 7081877040 is about 84153.8890366928. The cubic root of 7081877040 is about 1920.3606310436.

The spelling of 7081877040 in words is "seven billion, eighty-one million, eight hundred seventy-seven thousand, forty".