74102909019091 has 4 divisors (see below), whose sum is σ = 74102939980000. Its totient is φ = 74102878058184.

The previous prime is 74102909019067. The next prime is 74102909019107. The reversal of 74102909019091 is 19091090920147.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74102909019091 - 2¹³ = 74102909010899 is a prime.

It is a super-2 number, since 2×74102909019091² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74102909019691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11559216 + ... + 16787533.

It is an arithmetic number, because the mean of its divisors is an integer number (18525734995000).

Almost surely, 2^{74102909019091} is an apocalyptic number.

74102909019091 is a deficient number, since it is larger than the sum of its proper divisors (30960909).

74102909019091 is a wasteful number, since it uses less digits than its factorization.

74102909019091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30960908.

The product of its (nonzero) digits is 367416, while the sum is 52.

The spelling of 74102909019091 in words is "seventy-four trillion, one hundred two billion, nine hundred nine million, nineteen thousand, ninety-one".