1440861139377 has 24 divisors (see below), whose sum is σ = 2279493504288. Its totient is φ = 869770080000.

The previous prime is 1440861139363. The next prime is 1440861139411. The reversal of 1440861139377 is 7739311680441.

1440861139377 is a `hidden beast` number, since 1 + 440 + 8 + 61 + 139 + 3 + 7 + 7 = 666.

It is not a de Polignac number, because 1440861139377 - 2¹⁵ = 1440861106609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1440861139357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28967488 + ... + 29017185.

It is an arithmetic number, because the mean of its divisors is an integer number (94978896012).

Almost surely, 2^{1440861139377} is an apocalyptic number.

It is an amenable number.

1440861139377 is a deficient number, since it is larger than the sum of its proper divisors (838632364911).

1440861139377 is a wasteful number, since it uses less digits than its factorization.

1440861139377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57984941 (or 57984938 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 1440861139377 in words is "one trillion, four hundred forty billion, eight hundred sixty-one million, one hundred thirty-nine thousand, three hundred seventy-seven".