40389075771 has 8 divisors (see below), whose sum is σ = 58747746624. Its totient is φ = 24478227720.

The previous prime is 40389075767. The next prime is 40389075781. The reversal of 40389075771 is 17757098304.

40389075771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 40389075771 - 2² = 40389075767 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40389075761) 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, 611955661 + ... + 611955726.

It is an arithmetic number, because the mean of its divisors is an integer number (7343468328).

Almost surely, 2^40389075771 is an apocalyptic number.

40389075771 is a deficient number, since it is larger than the sum of its proper divisors (18358670853).

40389075771 is a wasteful number, since it uses less digits than its factorization.

40389075771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223911401.

The product of its (nonzero) digits is 1481760, while the sum is 51.

The spelling of 40389075771 in words is "forty billion, three hundred eighty-nine million, seventy-five thousand, seven hundred seventy-one".