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61648706995 = 523536075713
BaseRepresentation
bin111001011010100011…
…001001110110110011
312220010101220210120021
4321122203021312303
52002224032110440
644153201424311
74311466235431
oct713243116663
9186111823507
1061648706995
11241660a7027
12bb4603b097
135a761b7965
142dab825d51
15190c37384a
hexe5a8c9db3

61648706995 has 8 divisors (see below), whose sum is σ = 77194902816. Its totient is φ = 47174662656.

The previous prime is 61648706957. The next prime is 61648707017. The reversal of 61648706995 is 59960784616.

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 61648706995 - 213 = 61648698803 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268037742 + ... + 268037971.

It is an arithmetic number, because the mean of its divisors is an integer number (9649362852).

Almost surely, 261648706995 is an apocalyptic number.

61648706995 is a deficient number, since it is larger than the sum of its proper divisors (15546195821).

61648706995 is a wasteful number, since it uses less digits than its factorization.

61648706995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536075741.

The product of its (nonzero) digits is 19595520, while the sum is 61.

The spelling of 61648706995 in words is "sixty-one billion, six hundred forty-eight million, seven hundred six thousand, nine hundred ninety-five".

Divisors: 1 5 23 115 536075713 2680378565 12329741399 61648706995