40378764027765 has 32 divisors (see below), whose sum is σ = 65492640627840. Its totient is φ = 21239815873536.

The previous prime is 40378764027733. The next prime is 40378764027799. The reversal of 40378764027765 is 56772046787304.

It is not a de Polignac number, because 40378764027765 - 2⁵ = 40378764027733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40378764027696 and 40378764027705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46500409 + ... + 47360801.

It is an arithmetic number, because the mean of its divisors is an integer number (2046645019620).

Almost surely, 2^{40378764027765} is an apocalyptic number.

It is an amenable number.

40378764027765 is a deficient number, since it is larger than the sum of its proper divisors (25113876600075).

40378764027765 is a wasteful number, since it uses less digits than its factorization.

40378764027765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903333.

The product of its (nonzero) digits is 331914240, while the sum is 66.

The spelling of 40378764027765 in words is "forty trillion, three hundred seventy-eight billion, seven hundred sixty-four million, twenty-seven thousand, seven hundred sixty-five".