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40401768617 = 75771681231
BaseRepresentation
bin100101101000001000…
…100001000010101001
310212021200001111102122
4211220020201002221
51130220323043432
630321010041025
72630123236610
oct455010410251
9125250044378
1040401768617
1116152821821
1279b6579175
133a6b392b82
141d53ab2877
1510b6de9612
hex9682210a9

40401768617 has 4 divisors (see below), whose sum is σ = 46173449856. Its totient is φ = 34630087380.

The previous prime is 40401768599. The next prime is 40401768683. The reversal of 40401768617 is 71686710404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40401768617 - 214 = 40401752233 is a prime.

It is a super-3 number, since 3×404017686173 (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40401764617) 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, 2885840609 + ... + 2885840622.

It is an arithmetic number, because the mean of its divisors is an integer number (11543362464).

Almost surely, 240401768617 is an apocalyptic number.

It is an amenable number.

40401768617 is a deficient number, since it is larger than the sum of its proper divisors (5771681239).

40401768617 is an equidigital number, since it uses as much as digits as its factorization.

40401768617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5771681238.

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 40401768617 in words is "forty billion, four hundred one million, seven hundred sixty-eight thousand, six hundred seventeen".

Divisors: 1 7 5771681231 40401768617