7213625913 has 24 divisors (see below), whose sum is σ = 10420576320. Its totient is φ = 4436752320.

The previous prime is 7213625893. The next prime is 7213625983. The reversal of 7213625913 is 3195263127.

It is a happy number.

It is not a de Polignac number, because 7213625913 - 2¹⁰ = 7213624889 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7213625983) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1558743 + ... + 1563363.

It is an arithmetic number, because the mean of its divisors is an integer number (434190680).

Almost surely, 2^7213625913 is an apocalyptic number.

It is an amenable number.

7213625913 is a deficient number, since it is larger than the sum of its proper divisors (3206950407).

7213625913 is a wasteful number, since it uses less digits than its factorization.

7213625913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7729 (or 7716 counting only the distinct ones).

The product of its digits is 68040, while the sum is 39.

The square root of 7213625913 is about 84933.0672529846. The cubic root of 7213625913 is about 1932.1961195896.

The spelling of 7213625913 in words is "seven billion, two hundred thirteen million, six hundred twenty-five thousand, nine hundred thirteen".