74190097801 has 8 divisors (see below), whose sum is σ = 74711086208. Its totient is φ = 73669500000.

The previous prime is 74190097777. The next prime is 74190097819. The reversal of 74190097801 is 10879009147.

74190097801 is a nontrivial binomial coefficient, being equal to C(385202, 2).

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

It is a 3-Lehmer number, since φ(74190097801) divides (74190097801-1)³.

It is a cyclic number.

It is a Carmichael number.

It is not a de Polignac number, because 74190097801 - 2²³ = 74181709193 is a prime.

It is a super-2 number, since 2×74190097801² (a number of 23 digits) contains 22 as substring.

It is a deceptive number, since it divides R_74190097800.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74190097841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288901 + ... + 481501.

It is an arithmetic number, because the mean of its divisors is an integer number (9338885776).

It is a Poulet number, since it divides 2^74190097800-1.

Almost surely, 2^74190097801 is an apocalyptic number.

74190097801 is the 385201-st triangular number and also the 192601-st hexagonal number.

74190097801 is the 128401-st centered nonagonal number.

It is an amenable number.

74190097801 is a deficient number, since it is larger than the sum of its proper divisors (520988407).

74190097801 is a wasteful number, since it uses less digits than its factorization.

74190097801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195303.

The product of its (nonzero) digits is 127008, while the sum is 46.

The spelling of 74190097801 in words is "seventy-four billion, one hundred ninety million, ninety-seven thousand, eight hundred one".