40972239451 has 32 divisors (see below), whose sum is σ = 49578475968. Its totient is φ = 33356759040.

The previous prime is 40972239443. The next prime is 40972239479. The reversal of 40972239451 is 15493227904.

It is not a de Polignac number, because 40972239451 - 2³ = 40972239443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40972239401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1856755 + ... + 1878691.

It is an arithmetic number, because the mean of its divisors is an integer number (1549327374).

Almost surely, 2^40972239451 is an apocalyptic number.

40972239451 is a deficient number, since it is larger than the sum of its proper divisors (8606236517).

40972239451 is a wasteful number, since it uses less digits than its factorization.

40972239451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22351.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 40972239451 in words is "forty billion, nine hundred seventy-two million, two hundred thirty-nine thousand, four hundred fifty-one".