1291142766354 has 32 divisors (see below), whose sum is σ = 3030945184896. Its totient is φ = 358927718400.

The previous prime is 1291142766307. The next prime is 1291142766377. The reversal of 1291142766354 is 4536672411921.

It is a junction number, because it is equal to n+sod(n) for n = 1291142766297 and 1291142766306.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415424047 + ... + 415427154.

It is an arithmetic number, because the mean of its divisors is an integer number (94717037028).

Almost surely, 2^{1291142766354} is an apocalyptic number.

1291142766354 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1291142766354 is an abundant number, since it is smaller than the sum of its proper divisors (1739802418542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1291142766354 is a wasteful number, since it uses less digits than its factorization.

1291142766354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830851250.

The product of its digits is 2177280, while the sum is 51.

The spelling of 1291142766354 in words is "one trillion, two hundred ninety-one billion, one hundred forty-two million, seven hundred sixty-six thousand, three hundred fifty-four".