7537400065 has 8 divisors (see below), whose sum is σ = 9740640168. Its totient is φ = 5566080000.

The previous prime is 7537400053. The next prime is 7537400071. The reversal of 7537400065 is 5600047357.

It can be written as a sum of positive squares in 4 ways, for example, as 24671089 + 7512728976 = 4967^2 + 86676^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7537400065 - 2⁹ = 7537399553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7537399997 and 7537400033.

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, 57979936 + ... + 57980065.

It is an arithmetic number, because the mean of its divisors is an integer number (1217580021).

Almost surely, 2^7537400065 is an apocalyptic number.

It is an amenable number.

7537400065 is a deficient number, since it is larger than the sum of its proper divisors (2203240103).

7537400065 is a wasteful number, since it uses less digits than its factorization.

7537400065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115960019.

The product of its (nonzero) digits is 88200, while the sum is 37.

The square root of 7537400065 is about 86818.2012310783. The cubic root of 7537400065 is about 1960.6821227933.

The spelling of 7537400065 in words is "seven billion, five hundred thirty-seven million, four hundred thousand, sixty-five".