7087621812 has 24 divisors (see below), whose sum is σ = 16591661856. Its totient is φ = 2354843808.

The previous prime is 7087621769. The next prime is 7087621823. The reversal of 7087621812 is 2181267807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 958263 + ... + 965630.

It is an arithmetic number, because the mean of its divisors is an integer number (691319244).

Almost surely, 2^7087621812 is an apocalyptic number.

It is an amenable number.

7087621812 is an abundant number, since it is smaller than the sum of its proper divisors (9504040044).

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

7087621812 is a wasteful number, since it uses less digits than its factorization.

7087621812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924207 (or 1924205 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 42.

The square root of 7087621812 is about 84188.0146576697. The cubic root of 7087621812 is about 1920.8797519973.

The spelling of 7087621812 in words is "seven billion, eighty-seven million, six hundred twenty-one thousand, eight hundred twelve".