40947173155 has 24 divisors (see below), whose sum is σ = 57167948448. Its totient is φ = 28073622528.

The previous prime is 40947173153. The next prime is 40947173219. The reversal of 40947173155 is 55137174904.

It is not a de Polignac number, because 40947173155 - 2¹ = 40947173153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40947173153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2561347 + ... + 2577283.

It is an arithmetic number, because the mean of its divisors is an integer number (2381997852).

Almost surely, 2^40947173155 is an apocalyptic number.

40947173155 is a deficient number, since it is larger than the sum of its proper divisors (16220775293).

40947173155 is a wasteful number, since it uses less digits than its factorization.

40947173155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26443 (or 26436 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 46.

The spelling of 40947173155 in words is "forty billion, nine hundred forty-seven million, one hundred seventy-three thousand, one hundred fifty-five".