7477744474 has 64 divisors (see below), whose sum is σ = 12420099360. Its totient is φ = 3361996800.

The previous prime is 7477744459. The next prime is 7477744493. The reversal of 7477744474 is 4744477747.

It can be written as a sum of positive squares in 16 ways, for example, as 7429233249 + 48511225 = 86193^2 + 6965^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29096154 + ... + 29096410.

Almost surely, 2^7477744474 is an apocalyptic number.

7477744474 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

7477744474 is a deficient number, since it is larger than the sum of its proper divisors (4942354886).

7477744474 is a wasteful number, since it uses less digits than its factorization.

7477744474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643.

The product of its digits is 17210368, while the sum is 55.

The square root of 7477744474 is about 86473.9525753276. The cubic root of 7477744474 is about 1955.4957369914.

Adding to 7477744474 its reverse (4744477747), we get a palindrome (12222222221).

The spelling of 7477744474 in words is "seven billion, four hundred seventy-seven million, seven hundred forty-four thousand, four hundred seventy-four".