20437513744 has 20 divisors (see below), whose sum is σ = 39600657360. Its totient is φ = 10217989280.

The previous prime is 20437513727. The next prime is 20437513753. The reversal of 20437513744 is 44731573402.

It is a junction number, because it is equal to n+sod(n) for n = 20437513697 and 20437513706.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215547 + ... + 295525.

It is an arithmetic number, because the mean of its divisors is an integer number (1980032868).

Almost surely, 2^20437513744 is an apocalyptic number.

It is an amenable number.

20437513744 is a deficient number, since it is larger than the sum of its proper divisors (19163143616).

20437513744 is a wasteful number, since it uses less digits than its factorization.

20437513744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95958 (or 95952 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 40.

The spelling of 20437513744 in words is "twenty billion, four hundred thirty-seven million, five hundred thirteen thousand, seven hundred forty-four".