7850615040 has 144 divisors (see below), whose sum is σ = 27858902400. Its totient is φ = 2093488128.

The previous prime is 7850615033. The next prime is 7850615041. The reversal of 7850615040 is 405160587.

It is a tau number, because it is divible by the number of its divisors (144).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 7850614986 and 7850615004.

It is not an unprimeable number, because it can be changed into a prime (7850615041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79020 + ... + 148139.

It is an arithmetic number, because the mean of its divisors is an integer number (193464600).

Almost surely, 2^7850615040 is an apocalyptic number.

It is an amenable number.

7850615040 is an abundant number, since it is smaller than the sum of its proper divisors (20008287360).

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

7850615040 is a wasteful number, since it uses less digits than its factorization.

7850615040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227189 (or 227169 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 7850615040 is about 88603.6965368827. The cubic root of 7850615040 is about 1987.4729537081.

The spelling of 7850615040 in words is "seven billion, eight hundred fifty million, six hundred fifteen thousand, forty".