7469989644 has 48 divisors (see below), whose sum is σ = 19278075488. Its totient is φ = 2236336128.

The previous prime is 7469989619. The next prime is 7469989651. The reversal of 7469989644 is 4469899647.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 641317 + ... + 652860.

Almost surely, 2^7469989644 is an apocalyptic number.

7469989644 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

7469989644 is an abundant number, since it is smaller than the sum of its proper divisors (11808085844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7469989644 is a wasteful number, since it uses less digits than its factorization.

7469989644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294234 (or 1294232 counting only the distinct ones).

The product of its digits is 94058496, while the sum is 66.

The square root of 7469989644 is about 86429.1018349722. The cubic root of 7469989644 is about 1954.8195178350.

The spelling of 7469989644 in words is "seven billion, four hundred sixty-nine million, nine hundred eighty-nine thousand, six hundred forty-four".