40077797706 has 40 divisors (see below), whose sum is σ = 94530485280. Its totient is φ = 12656145672.

The previous prime is 40077797681. The next prime is 40077797717. The reversal of 40077797706 is 60779777004.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6507286 + ... + 6513441.

It is an arithmetic number, because the mean of its divisors is an integer number (2363262132).

Almost surely, 2^40077797706 is an apocalyptic number.

40077797706 is an abundant number, since it is smaller than the sum of its proper divisors (54452687574).

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

40077797706 is a wasteful number, since it uses less digits than its factorization.

40077797706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13020760 (or 13020751 counting only the distinct ones).

The product of its (nonzero) digits is 3630312, while the sum is 54.

The spelling of 40077797706 in words is "forty billion, seventy-seven million, seven hundred ninety-seven thousand, seven hundred six".