40783777251 has 8 divisors (see below), whose sum is σ = 62146708224. Its totient is φ = 23305015560.

The previous prime is 40783777207. The next prime is 40783777273. The reversal of 40783777251 is 15277738704.

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

It is not a de Polignac number, because 40783777251 - 2⁹ = 40783776739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40783777194 and 40783777203.

It is not an unprimeable number, because it can be changed into a prime (40783777451) 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, 971042295 + ... + 971042336.

It is an arithmetic number, because the mean of its divisors is an integer number (7768338528).

Almost surely, 2^40783777251 is an apocalyptic number.

40783777251 is a deficient number, since it is larger than the sum of its proper divisors (21362930973).

40783777251 is a wasteful number, since it uses less digits than its factorization.

40783777251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1942084641.

The product of its (nonzero) digits is 2304960, while the sum is 51.

The spelling of 40783777251 in words is "forty billion, seven hundred eighty-three million, seven hundred seventy-seven thousand, two hundred fifty-one".