40000077750 has 256 divisors, whose sum is σ = 112070200320. Its totient is φ = 9443174400.

The previous prime is 40000077743. The next prime is 40000077779. The reversal of 40000077750 is 5777000004.

It is a happy number.

40000077750 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 39486244 + ... + 39487256.

It is an arithmetic number, because the mean of its divisors is an integer number (437774220).

Almost surely, 2^40000077750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40000077750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56035100160).

40000077750 is an abundant number, since it is smaller than the sum of its proper divisors (72070122570).

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

40000077750 is a wasteful number, since it uses less digits than its factorization.

40000077750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232 (or 1222 counting only the distinct ones).

The product of its (nonzero) digits is 6860, while the sum is 30.

Adding to 40000077750 its reverse (5777000004), we get a palindrome (45777077754).

The spelling of 40000077750 in words is "forty billion, seventy-seven thousand, seven hundred fifty".