Search a number
-
+
74796858661 = 712784135949
BaseRepresentation
bin100010110101000111…
…1010111110100100101
321011001201111002220111
41011222033113310211
52211140443434121
654210004133021
75255351544220
oct1055217276445
9234051432814
1074796858661
11297a2970a78
12125b5397171
13709018c165
143897b185b7
151e2b7dc2e1
hex116a3d7d25

74796858661 has 8 divisors (see below), whose sum is σ = 86155212800. Its totient is φ = 63606776688.

The previous prime is 74796858607. The next prime is 74796858679. The reversal of 74796858661 is 16685869747.

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

It is not a de Polignac number, because 74796858661 - 225 = 74763304229 is a prime.

It is a super-2 number, since 2×747968586612 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74796858691) 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, 42067086 + ... + 42068863.

It is an arithmetic number, because the mean of its divisors is an integer number (10769401600).

Almost surely, 274796858661 is an apocalyptic number.

It is an amenable number.

74796858661 is a deficient number, since it is larger than the sum of its proper divisors (11358354139).

74796858661 is a wasteful number, since it uses less digits than its factorization.

74796858661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84136083.

The product of its digits is 121927680, while the sum is 67.

The spelling of 74796858661 in words is "seventy-four billion, seven hundred ninety-six million, eight hundred fifty-eight thousand, six hundred sixty-one".

Divisors: 1 7 127 889 84135949 588951643 10685265523 74796858661