40674155643 has 16 divisors (see below), whose sum is σ = 65736009600. Its totient is φ = 24651003240.

The previous prime is 40674155633. The next prime is 40674155693. The reversal of 40674155643 is 34655147604.

40674155643 is a `hidden beast` number, since 4 + 0 + 6 + 74 + 15 + 564 + 3 = 666.

It is not a de Polignac number, because 40674155643 - 2¹² = 40674151547 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (40674155603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68474713 + ... + 68475306.

It is an arithmetic number, because the mean of its divisors is an integer number (4108500600).

Almost surely, 2^40674155643 is an apocalyptic number.

40674155643 is a deficient number, since it is larger than the sum of its proper divisors (25061853957).

40674155643 is a wasteful number, since it uses less digits than its factorization.

40674155643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136950039 (or 136950033 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 40674155643 in words is "forty billion, six hundred seventy-four million, one hundred fifty-five thousand, six hundred forty-three".