1378740022631 has 32 divisors (see below), whose sum is σ = 1521000499200. Its totient is φ = 1244748954240.

The previous prime is 1378740022609. The next prime is 1378740022643. The reversal of 1378740022631 is 1362200478731.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1378740022631 is a prime.

It is a super-2 number, since 2×1378740022631² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378740022661) 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 31 ways as a sum of consecutive naturals, for example, 204770141 + ... + 204776873.

It is an arithmetic number, because the mean of its divisors is an integer number (47531265600).

Almost surely, 2^{1378740022631} is an apocalyptic number.

1378740022631 is a deficient number, since it is larger than the sum of its proper divisors (142260476569).

1378740022631 is a wasteful number, since it uses less digits than its factorization.

1378740022631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12039.

The product of its (nonzero) digits is 338688, while the sum is 44.

The spelling of 1378740022631 in words is "one trillion, three hundred seventy-eight billion, seven hundred forty million, twenty-two thousand, six hundred thirty-one".