64207205475751 has 32 divisors (see below), whose sum is σ = 71267705595968. Its totient is φ = 57461518402560.

The previous prime is 64207205475659. The next prime is 64207205475757. The reversal of 64207205475751 is 15757450270246.

It is not a de Polignac number, because 64207205475751 - 2³⁹ = 63657449661863 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64207205475692 and 64207205475701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64207205475757) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160926616 + ... + 161325106.

It is an arithmetic number, because the mean of its divisors is an integer number (2227115799874).

Almost surely, 2^{64207205475751} is an apocalyptic number.

64207205475751 is a deficient number, since it is larger than the sum of its proper divisors (7060500120217).

64207205475751 is a wasteful number, since it uses less digits than its factorization.

64207205475751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399731.

The product of its (nonzero) digits is 16464000, while the sum is 55.

The spelling of 64207205475751 in words is "sixty-four trillion, two hundred seven billion, two hundred five million, four hundred seventy-five thousand, seven hundred fifty-one".