40513145834 has 32 divisors (see below), whose sum is σ = 70838240256. Its totient is φ = 17016704640.

The previous prime is 40513145821. The next prime is 40513145861. The reversal of 40513145834 is 43854131504.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 666119 + ... + 724389.

It is an arithmetic number, because the mean of its divisors is an integer number (2213695008).

Almost surely, 2^40513145834 is an apocalyptic number.

40513145834 is a deficient number, since it is larger than the sum of its proper divisors (30325094422).

40513145834 is a wasteful number, since it uses less digits than its factorization.

40513145834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59270.

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 40513145834 in words is "forty billion, five hundred thirteen million, one hundred forty-five thousand, eight hundred thirty-four".