7272621131345 has 8 divisors (see below), whose sum is σ = 8775361631400. Its totient is φ = 5785952722560.

The previous prime is 7272621131339. The next prime is 7272621131359. The reversal of 7272621131345 is 5431311262727.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 260499993664 + 7012121137681 = 510392^2 + 2648041^2 .

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

It is not a de Polignac number, because 7272621131345 - 2⁴ = 7272621131329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7272621131296 and 7272621131305.

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, 4018021820 + ... + 4018023629.

It is an arithmetic number, because the mean of its divisors is an integer number (1096920203925).

Almost surely, 2^{7272621131345} is an apocalyptic number.

It is an amenable number.

7272621131345 is a deficient number, since it is larger than the sum of its proper divisors (1502740500055).

7272621131345 is a wasteful number, since it uses less digits than its factorization.

7272621131345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8036045635.

The product of its digits is 423360, while the sum is 44.

The spelling of 7272621131345 in words is "seven trillion, two hundred seventy-two billion, six hundred twenty-one million, one hundred thirty-one thousand, three hundred forty-five".