40646278688530 has 16 divisors (see below), whose sum is σ = 74193770677824. Its totient is φ = 16029518355760.

The previous prime is 40646278688479. The next prime is 40646278688539. The reversal of 40646278688530 is 3588687264604.

It is not an unprimeable number, because it can be changed into a prime (40646278688539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28624139212 + ... + 28624140631.

It is an arithmetic number, because the mean of its divisors is an integer number (4637110667364).

Almost surely, 2^{40646278688530} is an apocalyptic number.

40646278688530 is a deficient number, since it is larger than the sum of its proper divisors (33547491989294).

40646278688530 is a wasteful number, since it uses less digits than its factorization.

40646278688530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57248279921.

The product of its (nonzero) digits is 371589120, while the sum is 67.

The spelling of 40646278688530 in words is "forty trillion, six hundred forty-six billion, two hundred seventy-eight million, six hundred eighty-eight thousand, five hundred thirty".