40971285531 has 48 divisors (see below), whose sum is σ = 68003220480. Its totient is φ = 23508792000.

The previous prime is 40971285503. The next prime is 40971285541. The reversal of 40971285531 is 13558217904.

40971285531 is a `hidden beast` number, since 4 + 0 + 9 + 71 + 28 + 553 + 1 = 666.

It is not a de Polignac number, because 40971285531 - 2¹³ = 40971277339 is a prime.

It is a super-2 number, since 2×40971285531² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40971285541) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3268566 + ... + 3281076.

It is an arithmetic number, because the mean of its divisors is an integer number (1416733760).

Almost surely, 2^40971285531 is an apocalyptic number.

40971285531 is a deficient number, since it is larger than the sum of its proper divisors (27031934949).

40971285531 is a wasteful number, since it uses less digits than its factorization.

40971285531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14288 (or 14285 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 40971285531 in words is "forty billion, nine hundred seventy-one million, two hundred eighty-five thousand, five hundred thirty-one".