40235021620017 has 16 divisors (see below), whose sum is σ = 64537378037760. Its totient is φ = 21781365087312.

The previous prime is 40235021620007. The next prime is 40235021620051. The reversal of 40235021620017 is 71002612053204.

It is not a de Polignac number, because 40235021620017 - 2¹⁸ = 40235021357873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40235021620017.

It is not an unprimeable number, because it can be changed into a prime (40235021620007) 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, 50419826193 + ... + 50419826990.

It is an arithmetic number, because the mean of its divisors is an integer number (4033586127360).

Almost surely, 2^{40235021620017} is an apocalyptic number.

It is an amenable number.

40235021620017 is a deficient number, since it is larger than the sum of its proper divisors (24302356417743).

40235021620017 is a wasteful number, since it uses less digits than its factorization.

40235021620017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100839653212.

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 40235021620017 in words is "forty trillion, two hundred thirty-five billion, twenty-one million, six hundred twenty thousand, seventeen".