7137296640 has 144 divisors (see below), whose sum is σ = 25327612800. Its totient is φ = 1903269888.

The previous prime is 7137296623. The next prime is 7137296641. The reversal of 7137296640 is 466927317.

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

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (7137296641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68700 + ... + 137819.

It is an arithmetic number, because the mean of its divisors is an integer number (175886200).

Almost surely, 2^7137296640 is an apocalyptic number.

It is an amenable number.

7137296640 is an abundant number, since it is smaller than the sum of its proper divisors (18190316160).

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

7137296640 is a wasteful number, since it uses less digits than its factorization.

7137296640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206549 (or 206529 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 7137296640 is about 84482.5226896072. The cubic root of 7137296640 is about 1925.3569149862.

The spelling of 7137296640 in words is "seven billion, one hundred thirty-seven million, two hundred ninety-six thousand, six hundred forty".