40260221787 has 8 divisors (see below), whose sum is σ = 53681258304. Its totient is φ = 26839666568.

The previous prime is 40260221777. The next prime is 40260221839. The reversal of 40260221787 is 78712206204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40260221787 - 2¹⁵ = 40260189019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40260221777) 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, 186988 + ... + 339830.

It is an arithmetic number, because the mean of its divisors is an integer number (6710157288).

Almost surely, 2^40260221787 is an apocalyptic number.

40260221787 is a deficient number, since it is larger than the sum of its proper divisors (13421036517).

40260221787 is a wasteful number, since it uses less digits than its factorization.

40260221787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240649.

The product of its (nonzero) digits is 75264, while the sum is 39.

The spelling of 40260221787 in words is "forty billion, two hundred sixty million, two hundred twenty-one thousand, seven hundred eighty-seven".