64207404045706 has 4 divisors (see below), whose sum is σ = 96311106068562. Its totient is φ = 32103702022852.

The previous prime is 64207404045691. The next prime is 64207404045713. The reversal of 64207404045706 is 60754040470246.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 62764500984025 + 1442903061681 = 7922405^2 + 1201209^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 64207404045706.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16051851011425 + ... + 16051851011428.

Almost surely, 2^{64207404045706} is an apocalyptic number.

64207404045706 is a deficient number, since it is larger than the sum of its proper divisors (32103702022856).

64207404045706 is a wasteful number, since it uses less digits than its factorization.

64207404045706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32103702022855.

The product of its (nonzero) digits is 4515840, while the sum is 49.

The spelling of 64207404045706 in words is "sixty-four trillion, two hundred seven billion, four hundred four million, forty-five thousand, seven hundred six".