2729789476545 has 32 divisors (see below), whose sum is σ = 4538533708800. Its totient is φ = 1399381127424.

The previous prime is 2729789476523. The next prime is 2729789476663. The reversal of 2729789476545 is 5456749879272.

It is not a de Polignac number, because 2729789476545 - 2¹³ = 2729789468353 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13973350 + ... + 14167359.

It is an arithmetic number, because the mean of its divisors is an integer number (141829178400).

Almost surely, 2^{2729789476545} is an apocalyptic number.

It is an amenable number.

2729789476545 is a deficient number, since it is larger than the sum of its proper divisors (1808744232255).

2729789476545 is a wasteful number, since it uses less digits than its factorization.

2729789476545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28140969.

The product of its digits is 2133734400, while the sum is 75.

The spelling of 2729789476545 in words is "two trillion, seven hundred twenty-nine billion, seven hundred eighty-nine million, four hundred seventy-six thousand, five hundred forty-five".