39473427456 has 132 divisors (see below), whose sum is σ = 114211325124. Its totient is φ = 13130956800.

The previous prime is 39473427449. The next prime is 39473427479. The reversal of 39473427456 is 65472437493.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25980281856 + 13493145600 = 161184^2 + 116160^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4797426 + ... + 4805646.

Almost surely, 2^39473427456 is an apocalyptic number.

39473427456 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39473427456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57105662562).

39473427456 is an abundant number, since it is smaller than the sum of its proper divisors (74737897668).

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

39473427456 is a wasteful number, since it uses less digits than its factorization.

39473427456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8768 (or 8747 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 54.

The spelling of 39473427456 in words is "thirty-nine billion, four hundred seventy-three million, four hundred twenty-seven thousand, four hundred fifty-six".