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11868571797 = 313591291089
BaseRepresentation
bin10110000110110110…
…00000100010010101
31010122010210220202020
423003123000202111
5143301323244142
65241412403353
7600054124065
oct130333004225
933563726666
1011868571797
115040554725
122372916559
131171b68c64
148083a93a5
15496e5dcec
hex2c36c0895

11868571797 has 8 divisors (see below), whose sum is σ = 15825981120. Its totient is φ = 7911771840.

The previous prime is 11868571783. The next prime is 11868571823. The reversal of 11868571797 is 79717586811.

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

It is not a de Polignac number, because 11868571797 - 27 = 11868571669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11868571797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11868591797) 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, 104772 + ... + 186317.

It is an arithmetic number, because the mean of its divisors is an integer number (1978247640).

Almost surely, 211868571797 is an apocalyptic number.

It is an amenable number.

11868571797 is a deficient number, since it is larger than the sum of its proper divisors (3957409323).

11868571797 is a wasteful number, since it uses less digits than its factorization.

11868571797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304683.

The product of its digits is 5927040, while the sum is 60.

The spelling of 11868571797 in words is "eleven billion, eight hundred sixty-eight million, five hundred seventy-one thousand, seven hundred ninety-seven".

Divisors: 1 3 13591 40773 291089 873267 3956190599 11868571797