7240064607251 has 4 divisors (see below), whose sum is σ = 8274359551152. Its totient is φ = 6205769663352.

The previous prime is 7240064607241. The next prime is 7240064607253. The reversal of 7240064607251 is 1527064600427.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 7240064607251 - 2¹⁴ = 7240064590867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7240064607253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517147471940 + ... + 517147471953.

It is an arithmetic number, because the mean of its divisors is an integer number (2068589887788).

Almost surely, 2^{7240064607251} is an apocalyptic number.

7240064607251 is a deficient number, since it is larger than the sum of its proper divisors (1034294943901).

7240064607251 is a wasteful number, since it uses less digits than its factorization.

7240064607251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034294943900.

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 7240064607251 in words is "seven trillion, two hundred forty billion, sixty-four million, six hundred seven thousand, two hundred fifty-one".