2745727620479 has 8 divisors (see below), whose sum is σ = 2760966320112. Its totient is φ = 2730489678720.

The previous prime is 2745727620443. The next prime is 2745727620547. The reversal of 2745727620479 is 9740267275472.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2745727620479 is a prime.

It is a super-2 number, since 2×2745727620479² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745727620079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8073047 + ... + 8406279.

It is an arithmetic number, because the mean of its divisors is an integer number (345120790014).

Almost surely, 2^{2745727620479} is an apocalyptic number.

2745727620479 is a deficient number, since it is larger than the sum of its proper divisors (15238699633).

2745727620479 is a wasteful number, since it uses less digits than its factorization.

2745727620479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378937.

The product of its (nonzero) digits is 82978560, while the sum is 62.

The spelling of 2745727620479 in words is "two trillion, seven hundred forty-five billion, seven hundred twenty-seven million, six hundred twenty thousand, four hundred seventy-nine".