40785971193 has 24 divisors (see below), whose sum is σ = 64289578080. Its totient is φ = 24710780160.

The previous prime is 40785971179. The next prime is 40785971249. The reversal of 40785971193 is 39117958704.

It is a happy number.

40785971193 is a `hidden beast` number, since 40 + 7 + 8 + 597 + 1 + 1 + 9 + 3 = 666.

It is not a de Polignac number, because 40785971193 - 2⁶ = 40785971129 is a prime.

It is a super-4 number, since 4×40785971193⁴ (a number of 44 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (40785971123) 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, 248730 + ... + 378732.

It is an arithmetic number, because the mean of its divisors is an integer number (2678732420).

Almost surely, 2^40785971193 is an apocalyptic number.

It is an amenable number.

40785971193 is a deficient number, since it is larger than the sum of its proper divisors (23503606887).

40785971193 is a wasteful number, since it uses less digits than its factorization.

40785971193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133189 (or 133186 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 54.

The spelling of 40785971193 in words is "forty billion, seven hundred eighty-five million, nine hundred seventy-one thousand, one hundred ninety-three".