7850122465249 has 9 divisors (see below), whose sum is σ = 7899037727763. Its totient is φ = 7801508311992.

The previous prime is 7850122465247. The next prime is 7850122465261. The reversal of 7850122465249 is 9425642210587.

The square root of 7850122465249 is 2801807.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7331059853649 + 519062611600 = 2707593^2 + 720460^2 .

It is not a de Polignac number, because 7850122465249 - 2¹ = 7850122465247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7850122465249.

It is not an unprimeable number, because it can be changed into a prime (7850122465243) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 456685947 + ... + 456703135.

Almost surely, 2^{7850122465249} is an apocalyptic number.

7850122465249 is the 2801807-th square number.

7850122465249 is the 1400904-th centered octagonal number.

It is an amenable number.

7850122465249 is a deficient number, since it is larger than the sum of its proper divisors (48915262514).

7850122465249 is an frugal number, since it uses more digits than its factorization.

7850122465249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34704 (or 17352 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 55.

The spelling of 7850122465249 in words is "seven trillion, eight hundred fifty billion, one hundred twenty-two million, four hundred sixty-five thousand, two hundred forty-nine".