1376953911431 has 16 divisors (see below), whose sum is σ = 1599604032000. Its totient is φ = 1160943206688.

The previous prime is 1376953911397. The next prime is 1376953911457. The reversal of 1376953911431 is 1341193596731.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1376953911431 - 2¹⁴ = 1376953895047 is a prime.

It is a super-2 number, since 2×1376953911431² (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 (1376953901431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6301241 + ... + 6516098.

It is an arithmetic number, because the mean of its divisors is an integer number (99975252000).

Almost surely, 2^{1376953911431} is an apocalyptic number.

1376953911431 is a deficient number, since it is larger than the sum of its proper divisors (222650120569).

1376953911431 is a wasteful number, since it uses less digits than its factorization.

1376953911431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12817598.

The product of its digits is 1837080, while the sum is 53.

The spelling of 1376953911431 in words is "one trillion, three hundred seventy-six billion, nine hundred fifty-three million, nine hundred eleven thousand, four hundred thirty-one".