1378747422231 has 32 divisors (see below), whose sum is σ = 2034036499968. Its totient is φ = 826285532160.

The previous prime is 1378747422229. The next prime is 1378747422313. The reversal of 1378747422231 is 1322247478731.

It is not a de Polignac number, because 1378747422231 - 2¹ = 1378747422229 is a prime.

It is a super-2 number, since 2×1378747422231² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378747422431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39966 + ... + 1661051.

It is an arithmetic number, because the mean of its divisors is an integer number (63563640624).

Almost surely, 2^{1378747422231} is an apocalyptic number.

1378747422231 is a deficient number, since it is larger than the sum of its proper divisors (655289077737).

1378747422231 is a wasteful number, since it uses less digits than its factorization.

1378747422231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701751.

The product of its digits is 3161088, while the sum is 51.

The spelling of 1378747422231 in words is "one trillion, three hundred seventy-eight billion, seven hundred forty-seven million, four hundred twenty-two thousand, two hundred thirty-one".