40648624644 has 48 divisors (see below), whose sum is σ = 95324640768. Its totient is φ = 13481346048.

The previous prime is 40648624613. The next prime is 40648624663. The reversal of 40648624644 is 44642684604.

It is a junction number, because it is equal to n+sod(n) for n = 40648624593 and 40648624602.

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, 7107274 + ... + 7112990.

It is an arithmetic number, because the mean of its divisors is an integer number (1985930016).

Almost surely, 2^40648624644 is an apocalyptic number.

It is an amenable number.

40648624644 is an abundant number, since it is smaller than the sum of its proper divisors (54676016124).

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

40648624644 is a wasteful number, since it uses less digits than its factorization.

40648624644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8604 (or 8602 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 48.

The spelling of 40648624644 in words is "forty billion, six hundred forty-eight million, six hundred twenty-four thousand, six hundred forty-four".