40621072634 has 8 divisors (see below), whose sum is σ = 61080587220. Its totient is φ = 20260876896.

The previous prime is 40621072621. The next prime is 40621072669. The reversal of 40621072634 is 43627012604.

40621072634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 40572030625 + 49042009 = 201425^2 + 7003^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40621072594 and 40621072603.

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, 24828689 + ... + 24830324.

Almost surely, 2^40621072634 is an apocalyptic number.

40621072634 is a deficient number, since it is larger than the sum of its proper divisors (20459514586).

40621072634 is a wasteful number, since it uses less digits than its factorization.

40621072634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49659424.

The product of its (nonzero) digits is 48384, while the sum is 35.

The spelling of 40621072634 in words is "forty billion, six hundred twenty-one million, seventy-two thousand, six hundred thirty-four".