40056198549 has 8 divisors (see below), whose sum is σ = 53425067232. Its totient is φ = 26695731120.

The previous prime is 40056198517. The next prime is 40056198551. The reversal of 40056198549 is 94589165004.

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

It is not a de Polignac number, because 40056198549 - 2⁵ = 40056198517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40056198509) 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, 2089179 + ... + 2108264.

It is an arithmetic number, because the mean of its divisors is an integer number (6678133404).

Almost surely, 2^40056198549 is an apocalyptic number.

It is an amenable number.

40056198549 is a deficient number, since it is larger than the sum of its proper divisors (13368868683).

40056198549 is a wasteful number, since it uses less digits than its factorization.

40056198549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4200627.

The product of its (nonzero) digits is 1555200, while the sum is 51.

The spelling of 40056198549 in words is "forty billion, fifty-six million, one hundred ninety-eight thousand, five hundred forty-nine".