40729645036 has 48 divisors (see below), whose sum is σ = 74783395008. Its totient is φ = 19372953600.

The previous prime is 40729645001. The next prime is 40729645037. The reversal of 40729645036 is 63054692704.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (40729645037) 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, 17397226 + ... + 17399566.

It is an arithmetic number, because the mean of its divisors is an integer number (1557987396).

Almost surely, 2^40729645036 is an apocalyptic number.

40729645036 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

40729645036 is a deficient number, since it is larger than the sum of its proper divisors (34053749972).

40729645036 is a wasteful number, since it uses less digits than its factorization.

40729645036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3322 (or 3320 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 40729645036 in words is "forty billion, seven hundred twenty-nine million, six hundred forty-five thousand, thirty-six".