64156467389029 has 4 divisors (see below), whose sum is σ = 64224646420140. Its totient is φ = 64088288357920.

The previous prime is 64156467389009. The next prime is 64156467389033. The reversal of 64156467389029 is 92098376465146.

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

It can be written as a sum of positive squares in 2 ways, for example, as 31550711468004 + 32605755921025 = 5617002^2 + 5710145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64156467389029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64156467389009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34089514144 + ... + 34089516025.

It is an arithmetic number, because the mean of its divisors is an integer number (16056161605035).

It is a 1-persistent number, because it is pandigital, but 2⋅64156467389029 = 128312934778058 is not.

Almost surely, 2^{64156467389029} is an apocalyptic number.

It is an amenable number.

64156467389029 is a deficient number, since it is larger than the sum of its proper divisors (68179031111).

64156467389029 is an equidigital number, since it uses as much as digits as its factorization.

64156467389029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68179031110.

The product of its (nonzero) digits is 470292480, while the sum is 70.

The spelling of 64156467389029 in words is "sixty-four trillion, one hundred fifty-six billion, four hundred sixty-seven million, three hundred eighty-nine thousand, twenty-nine".