6447930454 has 16 divisors (see below), whose sum is σ = 11119788288. Its totient is φ = 2746850472.

The previous prime is 6447930451. The next prime is 6447930457. The reversal of 6447930454 is 4540397446.

It is an interprime number because it is at equal distance from previous prime (6447930451) and next prime (6447930457).

It is a super-2 number, since 2×6447930454² = 83151614279241292232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6447930451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1376604 + ... + 1381279.

It is an arithmetic number, because the mean of its divisors is an integer number (694986768).

Almost surely, 2^6447930454 is an apocalyptic number.

6447930454 is a deficient number, since it is larger than the sum of its proper divisors (4671857834).

6447930454 is a wasteful number, since it uses less digits than its factorization.

6447930454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2758059.

The product of its (nonzero) digits is 1451520, while the sum is 46.

The square root of 6447930454 is about 80299.0065567439. The cubic root of 6447930454 is about 1861.2588747267.

The spelling of 6447930454 in words is "six billion, four hundred forty-seven million, nine hundred thirty thousand, four hundred fifty-four".