40621423347 has 16 divisors (see below), whose sum is σ = 63719880480. Its totient is φ = 25487951616.

The previous prime is 40621423291. The next prime is 40621423351. The reversal of 40621423347 is 74332412604.

40621423347 is a `hidden beast` number, since 4 + 0 + 621 + 4 + 23 + 3 + 4 + 7 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-40621423347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40621423357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44249458 + ... + 44250375.

It is an arithmetic number, because the mean of its divisors is an integer number (3982492530).

Almost surely, 2^40621423347 is an apocalyptic number.

40621423347 is a deficient number, since it is larger than the sum of its proper divisors (23098457133).

40621423347 is a wasteful number, since it uses less digits than its factorization.

40621423347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88499859 (or 88499853 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 36.

The spelling of 40621423347 in words is "forty billion, six hundred twenty-one million, four hundred twenty-three thousand, three hundred forty-seven".