64748552787219 has 32 divisors (see below), whose sum is σ = 100139655216640. Its totient is φ = 36446003903232.

The previous prime is 64748552787157. The next prime is 64748552787337. The reversal of 64748552787219 is 91278725584746.

It is not a de Polignac number, because 64748552787219 - 2¹¹ = 64748552785171 is a prime.

It is a super-2 number, since 2×64748552787219² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64748552786219) 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, 55717557 + ... + 56867769.

It is an arithmetic number, because the mean of its divisors is an integer number (3129364225520).

Almost surely, 2^{64748552787219} is an apocalyptic number.

64748552787219 is a deficient number, since it is larger than the sum of its proper divisors (35391102429421).

64748552787219 is a wasteful number, since it uses less digits than its factorization.

64748552787219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190299.

The product of its digits is 1896652800, while the sum is 75.

The spelling of 64748552787219 in words is "sixty-four trillion, seven hundred forty-eight billion, five hundred fifty-two million, seven hundred eighty-seven thousand, two hundred nineteen".