40802564154 has 24 divisors (see below), whose sum is σ = 89698200480. Its totient is φ = 12364413160.

The previous prime is 40802564141. The next prime is 40802564171. The reversal of 40802564154 is 45146520804.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28100214 + ... + 28101665.

It is an arithmetic number, because the mean of its divisors is an integer number (3737425020).

Almost surely, 2^40802564154 is an apocalyptic number.

40802564154 is an abundant number, since it is smaller than the sum of its proper divisors (48895636326).

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

40802564154 is a wasteful number, since it uses less digits than its factorization.

40802564154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56201906 (or 56201895 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 39.

The spelling of 40802564154 in words is "forty billion, eight hundred two million, five hundred sixty-four thousand, one hundred fifty-four".