51407266771545 has 32 divisors (see below), whose sum is σ = 86621100209280. Its totient is φ = 25962065832960.

The previous prime is 51407266771529. The next prime is 51407266771591. The reversal of 51407266771545 is 54517766270415.

It is not a de Polignac number, because 51407266771545 - 2⁴ = 51407266771529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41514144 + ... + 42734513.

It is an arithmetic number, because the mean of its divisors is an integer number (2706909381540).

Almost surely, 2^{51407266771545} is an apocalyptic number.

It is an amenable number.

51407266771545 is a deficient number, since it is larger than the sum of its proper divisors (35213833437735).

51407266771545 is a wasteful number, since it uses less digits than its factorization.

51407266771545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84250825.

The product of its (nonzero) digits is 49392000, while the sum is 60.

The spelling of 51407266771545 in words is "fifty-one trillion, four hundred seven billion, two hundred sixty-six million, seven hundred seventy-one thousand, five hundred forty-five".