1913129108001 has 48 divisors (see below), whose sum is σ = 2999834602128. Its totient is φ = 1170137088000.

The previous prime is 1913129107999. The next prime is 1913129108021. The reversal of 1913129108001 is 1008019213191.

It can be written as a sum of positive squares in 8 ways, for example, as 157970477025 + 1755158630976 = 397455^2 + 1324824^2 .

It is not a de Polignac number, because 1913129108001 - 2¹ = 1913129107999 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1913129108021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7406905 + ... + 7660841.

It is an arithmetic number, because the mean of its divisors is an integer number (62496554211).

Almost surely, 2^{1913129108001} is an apocalyptic number.

It is an amenable number.

1913129108001 is a deficient number, since it is larger than the sum of its proper divisors (1086705494127).

1913129108001 is a wasteful number, since it uses less digits than its factorization.

1913129108001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255202 (or 255199 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 36.

The spelling of 1913129108001 in words is "one trillion, nine hundred thirteen billion, one hundred twenty-nine million, one hundred eight thousand, one".