7625016123721 has 8 divisors (see below), whose sum is σ = 7755668249760. Its totient is φ = 7494411149952.

The previous prime is 7625016123679. The next prime is 7625016123733. The reversal of 7625016123721 is 1273216105267.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 7625016123721 - 2³¹ = 7622868640073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7625016123421) 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, 11461800 + ... + 12108793.

It is an arithmetic number, because the mean of its divisors is an integer number (969458531220).

Almost surely, 2^{7625016123721} is an apocalyptic number.

It is an amenable number.

7625016123721 is a deficient number, since it is larger than the sum of its proper divisors (130652126039).

7625016123721 is a wasteful number, since it uses less digits than its factorization.

7625016123721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23576135.

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 7625016123721 in words is "seven trillion, six hundred twenty-five billion, sixteen million, one hundred twenty-three thousand, seven hundred twenty-one".