134778620264 has 16 divisors (see below), whose sum is σ = 255315171300. Its totient is φ = 66694574592.

The previous prime is 134778620219. The next prime is 134778620269. The reversal of 134778620264 is 462026877431.

It can be written as a sum of positive squares in 2 ways, for example, as 126481232164 + 8297388100 = 355642^2 + 91090^2 .

It is a super-2 number, since 2×134778620264² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (134778620269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86841119 + ... + 86842670.

Almost surely, 2^134778620264 is an apocalyptic number.

It is an amenable number.

134778620264 is a deficient number, since it is larger than the sum of its proper divisors (120536551036).

134778620264 is a wasteful number, since it uses less digits than its factorization.

134778620264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173683892 (or 173683888 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 50.

The spelling of 134778620264 in words is "one hundred thirty-four billion, seven hundred seventy-eight million, six hundred twenty thousand, two hundred sixty-four".