7131380641 has 32 divisors (see below), whose sum is σ = 9098293248. Its totient is φ = 5427882240.

The previous prime is 7131380549. The next prime is 7131380653. The reversal of 7131380641 is 1460831317.

It is not a de Polignac number, because 7131380641 - 2⁷ = 7131380513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7131380597 and 7131380606.

It is not an unprimeable number, because it can be changed into a prime (7131380041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2144406 + ... + 2147728.

It is an arithmetic number, because the mean of its divisors is an integer number (284321664).

Almost surely, 2^7131380641 is an apocalyptic number.

It is an amenable number.

7131380641 is a deficient number, since it is larger than the sum of its proper divisors (1966912607).

7131380641 is a wasteful number, since it uses less digits than its factorization.

7131380641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3981.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 7131380641 is about 84447.5022780425. The cubic root of 7131380641 is about 1924.8248013713.

The spelling of 7131380641 in words is "seven billion, one hundred thirty-one million, three hundred eighty thousand, six hundred forty-one".