40620247354557 has 48 divisors (see below), whose sum is σ = 67603057849600. Its totient is φ = 23293219351680.

The previous prime is 40620247354529. The next prime is 40620247354573. The reversal of 40620247354557 is 75545374202604.

40620247354557 is a `hidden beast` number, since 4 + 0 + 6 + 2 + 0 + 2 + 47 + 3 + 545 + 57 = 666.

40620247354557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40620247354557 - 2⁷ = 40620247354429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40620247358557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 149640757 + ... + 149911962.

Almost surely, 2^{40620247354557} is an apocalyptic number.

It is an amenable number.

40620247354557 is a deficient number, since it is larger than the sum of its proper divisors (26982810495043).

40620247354557 is a wasteful number, since it uses less digits than its factorization.

40620247354557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299552818 (or 299552815 counting only the distinct ones).

The product of its (nonzero) digits is 28224000, while the sum is 54.

The spelling of 40620247354557 in words is "forty trillion, six hundred twenty billion, two hundred forty-seven million, three hundred fifty-four thousand, five hundred fifty-seven".