40321819156963 has 16 divisors (see below), whose sum is σ = 41761927468800. Its totient is φ = 38890595773440.

The previous prime is 40321819156961. The next prime is 40321819156979. The reversal of 40321819156963 is 36965191812304.

It is a cyclic number.

It is not a de Polignac number, because 40321819156963 - 2¹ = 40321819156961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40321819156898 and 40321819156907.

It is not an unprimeable number, because it can be changed into a prime (40321819156961) 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, 12627195 + ... + 15494827.

It is an arithmetic number, because the mean of its divisors is an integer number (2610120466800).

Almost surely, 2^{40321819156963} is an apocalyptic number.

40321819156963 is a deficient number, since it is larger than the sum of its proper divisors (1440108311837).

40321819156963 is a wasteful number, since it uses less digits than its factorization.

40321819156963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2869182.

The product of its (nonzero) digits is 8398080, while the sum is 58.

The spelling of 40321819156963 in words is "forty trillion, three hundred twenty-one billion, eight hundred nineteen million, one hundred fifty-six thousand, nine hundred sixty-three".