134173777572 has 18 divisors (see below), whose sum is σ = 339161493398. Its totient is φ = 44724592512.

The previous prime is 134173777553. The next prime is 134173777579. The reversal of 134173777572 is 275777371431.

It is a happy number.

134173777572 is a `hidden beast` number, since 1 + 34 + 1 + 7 + 37 + 7 + 7 + 572 = 666.

It can be written as a sum of positive squares in only one way, i.e., 98579672676 + 35594104896 = 313974^2 + 188664^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (134173777579) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1863524653 + ... + 1863524724.

Almost surely, 2^134173777572 is an apocalyptic number.

134173777572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

134173777572 is an abundant number, since it is smaller than the sum of its proper divisors (204987715826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134173777572 is a wasteful number, since it uses less digits than its factorization.

134173777572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3727049387 (or 3727049382 counting only the distinct ones).

The product of its digits is 6050520, while the sum is 54.

The spelling of 134173777572 in words is "one hundred thirty-four billion, one hundred seventy-three million, seven hundred seventy-seven thousand, five hundred seventy-two".