7099400561 has 8 divisors (see below), whose sum is σ = 7757082048. Its totient is φ = 6443766000.

The previous prime is 7099400389. The next prime is 7099400563. The reversal of 7099400561 is 1650049907.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7099400561 is a prime.

It is a super-2 number, since 2×7099400561² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7099400563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504470 + ... + 518351.

It is an arithmetic number, because the mean of its divisors is an integer number (969635256).

Almost surely, 2^7099400561 is an apocalyptic number.

It is an amenable number.

7099400561 is a deficient number, since it is larger than the sum of its proper divisors (657681487).

7099400561 is a wasteful number, since it uses less digits than its factorization.

7099400561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023463.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 7099400561 is about 84257.9406406304. The cubic root of 7099400561 is about 1921.9432511038.

The spelling of 7099400561 in words is "seven billion, ninety-nine million, four hundred thousand, five hundred sixty-one".