7215544272461 has 32 divisors (see below), whose sum is σ = 8933032304640. Its totient is φ = 5686971768576.

The previous prime is 7215544272421. The next prime is 7215544272467. The reversal of 7215544272461 is 1642724455127.

It is not a de Polignac number, because 7215544272461 - 2²⁶ = 7215477163597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7215544272467) 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, 2003120 + ... + 4294598.

It is an arithmetic number, because the mean of its divisors is an integer number (279157259520).

Almost surely, 2^{7215544272461} is an apocalyptic number.

It is an amenable number.

7215544272461 is a deficient number, since it is larger than the sum of its proper divisors (1717488032179).

7215544272461 is a wasteful number, since it uses less digits than its factorization.

7215544272461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292113.

The product of its digits is 3763200, while the sum is 50.

The spelling of 7215544272461 in words is "seven trillion, two hundred fifteen billion, five hundred forty-four million, two hundred seventy-two thousand, four hundred sixty-one".