51653946995 has 32 divisors (see below), whose sum is σ = 71923396608. Its totient is φ = 34879534848.

The previous prime is 51653946989. The next prime is 51653947001. The reversal of 51653946995 is 59964935615.

It is an interprime number because it is at equal distance from previous prime (51653946989) and next prime (51653947001).

It is a cyclic number.

It is not a de Polignac number, because 51653946995 - 2⁸ = 51653946739 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1637462 + ... + 1668708.

It is an arithmetic number, because the mean of its divisors is an integer number (2247606144).

Almost surely, 2^51653946995 is an apocalyptic number.

51653946995 is a deficient number, since it is larger than the sum of its proper divisors (20269449613).

51653946995 is a wasteful number, since it uses less digits than its factorization.

51653946995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31979.

The product of its digits is 39366000, while the sum is 62.

The spelling of 51653946995 in words is "fifty-one billion, six hundred fifty-three million, nine hundred forty-six thousand, nine hundred ninety-five".