40023777477 has 8 divisors (see below), whose sum is σ = 53594072064. Its totient is φ = 26568000608.

The previous prime is 40023777421. The next prime is 40023777499. The reversal of 40023777477 is 77477732004.

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

It is a cyclic number.

It is not a de Polignac number, because 40023777477 - 2¹² = 40023773381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40023777407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28628613 + ... + 28630010.

It is an arithmetic number, because the mean of its divisors is an integer number (6699259008).

Almost surely, 2^40023777477 is an apocalyptic number.

It is an amenable number.

40023777477 is a deficient number, since it is larger than the sum of its proper divisors (13570294587).

40023777477 is a wasteful number, since it uses less digits than its factorization.

40023777477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57258859.

The product of its (nonzero) digits is 1613472, while the sum is 48.

The spelling of 40023777477 in words is "forty billion, twenty-three million, seven hundred seventy-seven thousand, four hundred seventy-seven".