7945494422 has 4 divisors (see below), whose sum is σ = 11918241636. Its totient is φ = 3972747210.

The previous prime is 7945494413. The next prime is 7945494439. The reversal of 7945494422 is 2244945497.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2244945497 = 1061 ⋅2115877.

It is a super-2 number, since 2×7945494422² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1986373604 + ... + 1986373607.

It is an arithmetic number, because the mean of its divisors is an integer number (2979560409).

Almost surely, 2^7945494422 is an apocalyptic number.

7945494422 is a deficient number, since it is larger than the sum of its proper divisors (3972747214).

7945494422 is a wasteful number, since it uses less digits than its factorization.

7945494422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3972747213.

The product of its digits is 2903040, while the sum is 50.

The square root of 7945494422 is about 89137.5028930023. The cubic root of 7945494422 is about 1995.4475137973.

The spelling of 7945494422 in words is "seven billion, nine hundred forty-five million, four hundred ninety-four thousand, four hundred twenty-two".