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768612440897 = 7195790199809
BaseRepresentation
bin10110010111101001101…
…11110001101101000001
32201110220220220112100122
423023310313301231001
5100043104241102042
61345032400030025
7106346634644240
oct13136467615501
92643826815318
10768612440897
11276a6a75a004
12104b66902315
13576312a06b2
14292b5926957
1514ed797e7d2
hexb2f4df1b41

768612440897 has 16 divisors (see below), whose sum is σ = 924671779200. Its totient is φ = 624119385600.

The previous prime is 768612440879. The next prime is 768612440923. The reversal of 768612440897 is 798044216867.

It is a cyclic number.

It is not a de Polignac number, because 768612440897 - 28 = 768612440641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (768612440797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7650929 + ... + 7750737.

It is an arithmetic number, because the mean of its divisors is an integer number (57791986200).

Almost surely, 2768612440897 is an apocalyptic number.

It is an amenable number.

768612440897 is a deficient number, since it is larger than the sum of its proper divisors (156059338303).

768612440897 is a wasteful number, since it uses less digits than its factorization.

768612440897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157736.

The product of its (nonzero) digits is 32514048, while the sum is 62.

The spelling of 768612440897 in words is "seven hundred sixty-eight billion, six hundred twelve million, four hundred forty thousand, eight hundred ninety-seven".

Divisors: 1 7 19 133 57901 99809 405307 698663 1100119 1896371 7700833 13274597 5779040909 40453286363 109801777271 768612440897