7890961451 has 16 divisors (see below), whose sum is σ = 8647948800. Its totient is φ = 7166788608.

The previous prime is 7890961427. The next prime is 7890961453. The reversal of 7890961451 is 1541690987.

It is a cyclic number.

It is not a de Polignac number, because 7890961451 - 2⁶ = 7890961387 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 7890961451.

It is not an unprimeable number, because it can be changed into a prime (7890961453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1295030 + ... + 1301108.

It is an arithmetic number, because the mean of its divisors is an integer number (540496800).

Almost surely, 2^7890961451 is an apocalyptic number.

7890961451 is a deficient number, since it is larger than the sum of its proper divisors (756987349).

7890961451 is a wasteful number, since it uses less digits than its factorization.

7890961451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8758.

The product of its (nonzero) digits is 544320, while the sum is 50.

The square root of 7890961451 is about 88831.0838107923. The cubic root of 7890961451 is about 1990.8718561268.

The spelling of 7890961451 in words is "seven billion, eight hundred ninety million, nine hundred sixty-one thousand, four hundred fifty-one".