40456551443 has 12 divisors (see below), whose sum is σ = 51340039992. Its totient is φ = 31524585120.

The previous prime is 40456551407. The next prime is 40456551449. The reversal of 40456551443 is 34415565404.

It is not a de Polignac number, because 40456551443 - 2²⁶ = 40389442579 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40456551443.

It is not an unprimeable number, because it can be changed into a prime (40456551449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37528730 + ... + 37529807.

It is an arithmetic number, because the mean of its divisors is an integer number (4278336666).

Almost surely, 2^40456551443 is an apocalyptic number.

40456551443 is a deficient number, since it is larger than the sum of its proper divisors (10883488549).

40456551443 is a wasteful number, since it uses less digits than its factorization.

40456551443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75058562 (or 75058555 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 41.

The spelling of 40456551443 in words is "forty billion, four hundred fifty-six million, five hundred fifty-one thousand, four hundred forty-three".