1271140738510 has 16 divisors (see below), whose sum is σ = 2289256968672. Its totient is φ = 508188820000.

The previous prime is 1271140738459. The next prime is 1271140738541. The reversal of 1271140738510 is 158370411721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33414466 + ... + 33452485.

It is an arithmetic number, because the mean of its divisors is an integer number (143078560542).

Almost surely, 2^{1271140738510} is an apocalyptic number.

1271140738510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1271140738510 is a deficient number, since it is larger than the sum of its proper divisors (1018116230162).

1271140738510 is a wasteful number, since it uses less digits than its factorization.

1271140738510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66868859.

The product of its (nonzero) digits is 47040, while the sum is 40.

The spelling of 1271140738510 in words is "one trillion, two hundred seventy-one billion, one hundred forty million, seven hundred thirty-eight thousand, five hundred ten".