1278050748131 has 8 divisors (see below), whose sum is σ = 1348527364800. Its totient is φ = 1207895210280.

The previous prime is 1278050748019. The next prime is 1278050748199. The reversal of 1278050748131 is 1318470508721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1278050748131 - 2¹⁰ = 1278050747107 is a prime.

It is a super-2 number, since 2×1278050748131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1278050748631) 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 7 ways as a sum of consecutive naturals, for example, 80261525 + ... + 80277446.

It is an arithmetic number, because the mean of its divisors is an integer number (168565920600).

Almost surely, 2^{1278050748131} is an apocalyptic number.

1278050748131 is a deficient number, since it is larger than the sum of its proper divisors (70476616669).

1278050748131 is a wasteful number, since it uses less digits than its factorization.

1278050748131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160539409.

The product of its (nonzero) digits is 376320, while the sum is 47.

The spelling of 1278050748131 in words is "one trillion, two hundred seventy-eight billion, fifty million, seven hundred forty-eight thousand, one hundred thirty-one".