7265999010021 has 8 divisors (see below), whose sum is σ = 9690296064384. Its totient is φ = 4842850647840.

The previous prime is 7265999010019. The next prime is 7265999010037. The reversal of 7265999010021 is 1200109995627.

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

It is not a de Polignac number, because 7265999010021 - 2¹ = 7265999010019 is a prime.

It is a super-2 number, since 2×7265999010021² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7265999010521) 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, 287158285 + ... + 287183586.

It is an arithmetic number, because the mean of its divisors is an integer number (1211287008048).

Almost surely, 2^{7265999010021} is an apocalyptic number.

It is an amenable number.

7265999010021 is a deficient number, since it is larger than the sum of its proper divisors (2424297054363).

7265999010021 is a wasteful number, since it uses less digits than its factorization.

7265999010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574346091.

The product of its (nonzero) digits is 612360, while the sum is 51.

The spelling of 7265999010021 in words is "seven trillion, two hundred sixty-five billion, nine hundred ninety-nine million, ten thousand, twenty-one".