40529106864 has 120 divisors (see below), whose sum is σ = 121420895232. Its totient is φ = 13073866560.

The previous prime is 40529106829. The next prime is 40529106869. The reversal of 40529106864 is 46860192504.

40529106864 is a `hidden beast` number, since 4 + 0 + 529 + 1 + 0 + 68 + 64 = 666.

It is not an unprimeable number, because it can be changed into a prime (40529106869) 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, 47604 + ... + 288659.

Almost surely, 2^40529106864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40529106864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60710447616).

40529106864 is an abundant number, since it is smaller than the sum of its proper divisors (80891788368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40529106864 is a wasteful number, since it uses less digits than its factorization.

40529106864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336317 (or 336299 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 40529106864 in words is "forty billion, five hundred twenty-nine million, one hundred six thousand, eight hundred sixty-four".