7637121016 has 16 divisors (see below), whose sum is σ = 16365259440. Its totient is φ = 3273051840.

The previous prime is 7637121013. The next prime is 7637121017. The reversal of 7637121016 is 6101217367.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7637121013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68188525 + ... + 68188636.

It is an arithmetic number, because the mean of its divisors is an integer number (1022828715).

Almost surely, 2^7637121016 is an apocalyptic number.

It is an amenable number.

7637121016 is an abundant number, since it is smaller than the sum of its proper divisors (8728138424).

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

7637121016 is a wasteful number, since it uses less digits than its factorization.

7637121016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136377174 (or 136377170 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 7637121016 is about 87390.6231583229. The cubic root of 7637121016 is about 1969.2909759171.

The spelling of 7637121016 in words is "seven billion, six hundred thirty-seven million, one hundred twenty-one thousand, sixteen".