133464278690 has 16 divisors (see below), whose sum is σ = 240627614328. Its totient is φ = 53298619776.

The previous prime is 133464278677. The next prime is 133464278711. The reversal of 133464278690 is 96872464331.

It can be written as a sum of positive squares in 4 ways, for example, as 78474497689 + 54989781001 = 280133^2 + 234499^2 .

It is a super-3 number, since 3×133464278690³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10880027 + ... + 10892286.

Almost surely, 2^133464278690 is an apocalyptic number.

133464278690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133464278690 is a deficient number, since it is larger than the sum of its proper divisors (107163335638).

133464278690 is a wasteful number, since it uses less digits than its factorization.

133464278690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21772933.

The product of its (nonzero) digits is 5225472, while the sum is 53.

The spelling of 133464278690 in words is "one hundred thirty-three billion, four hundred sixty-four million, two hundred seventy-eight thousand, six hundred ninety".