3540729899456 has 56 divisors (see below), whose sum is σ = 7464860274720. Its totient is φ = 1663120069632.

The previous prime is 3540729899387. The next prime is 3540729899489. The reversal of 3540729899456 is 6549989270453.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3540729899456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25711340 + ... + 25848683.

Almost surely, 2^{3540729899456} is an apocalyptic number.

It is an amenable number.

3540729899456 is an abundant number, since it is smaller than the sum of its proper divisors (3924130375264).

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

3540729899456 is a wasteful number, since it uses less digits than its factorization.

3540729899456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51560101 (or 51560091 counting only the distinct ones).

The product of its (nonzero) digits is 587865600, while the sum is 71.

The spelling of 3540729899456 in words is "three trillion, five hundred forty billion, seven hundred twenty-nine million, eight hundred ninety-nine thousand, four hundred fifty-six".