7455252218242 has 8 divisors (see below), whose sum is σ = 11568494821500. Its totient is φ = 3599087277744.

The previous prime is 7455252218203. The next prime is 7455252218291. The reversal of 7455252218242 is 2428122525547.

It can be written as a sum of positive squares in 2 ways, for example, as 6911435939521 + 543816278721 = 2628961^2 + 737439^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64269415617 + ... + 64269415732.

Almost surely, 2^{7455252218242} is an apocalyptic number.

7455252218242 is a deficient number, since it is larger than the sum of its proper divisors (4113242603258).

7455252218242 is a wasteful number, since it uses less digits than its factorization.

7455252218242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128538831380.

The product of its digits is 3584000, while the sum is 49.

The spelling of 7455252218242 in words is "seven trillion, four hundred fifty-five billion, two hundred fifty-two million, two hundred eighteen thousand, two hundred forty-two".