7974420453 has 12 divisors (see below), whose sum is σ = 11521287648. Its totient is φ = 5315043240.

The previous prime is 7974420431. The next prime is 7974420463. The reversal of 7974420453 is 3540244797.

It is not a de Polignac number, because 7974420453 - 2¹⁷ = 7974289381 is a prime.

It is a super-2 number, since 2×7974420453² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 7974420399 and 7974420408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7974420463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61375 + ... + 140412.

It is an arithmetic number, because the mean of its divisors is an integer number (960107304).

Almost surely, 2^7974420453 is an apocalyptic number.

It is an amenable number.

7974420453 is a deficient number, since it is larger than the sum of its proper divisors (3546867195).

7974420453 is a wasteful number, since it uses less digits than its factorization.

7974420453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206184 (or 206181 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The square root of 7974420453 is about 89299.6105982551. The cubic root of 7974420453 is about 1997.8660951180.

The spelling of 7974420453 in words is "seven billion, nine hundred seventy-four million, four hundred twenty thousand, four hundred fifty-three".