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11457875647 = 61337557371
BaseRepresentation
bin10101010101111000…
…10100111010111111
31002120112000101112201
422222330110322333
5141431204010042
65132542012331
7553636223161
oct125274247277
932515011481
1011457875647
11494a743619
1222792770a7
131107a50c9a
147a9a1c931
15470d861b7
hex2aaf14ebf

11457875647 has 8 divisors (see below), whose sum is σ = 11680287632. Its totient is φ = 11236579200.

The previous prime is 11457875609. The next prime is 11457875659. The reversal of 11457875647 is 74657875411.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11457875647 - 211 = 11457873599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11457875677) 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, 258129 + ... + 299242.

It is an arithmetic number, because the mean of its divisors is an integer number (1460035954).

Almost surely, 211457875647 is an apocalyptic number.

11457875647 is a deficient number, since it is larger than the sum of its proper divisors (222411985).

11457875647 is an equidigital number, since it uses as much as digits as its factorization.

11457875647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557769.

The product of its digits is 6585600, while the sum is 55.

The spelling of 11457875647 in words is "eleven billion, four hundred fifty-seven million, eight hundred seventy-five thousand, six hundred forty-seven".

Divisors: 1 61 337 20557 557371 33999631 187834027 11457875647