2745690222420 has 48 divisors (see below), whose sum is σ = 8542147360320. Its totient is φ = 732184059168.

The previous prime is 2745690222403. The next prime is 2745690222421. The reversal of 2745690222420 is 242220965472.

2745690222420 is a `hidden beast` number, since 2 + 74 + 56 + 90 + 2 + 22 + 420 = 666.

It is a super-3 number, since 3×2745690222420³ (a number of 38 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745690222421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2542305222 + ... + 2542306301.

It is an arithmetic number, because the mean of its divisors is an integer number (177961403340).

Almost surely, 2^{2745690222420} is an apocalyptic number.

2745690222420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2745690222420 is an abundant number, since it is smaller than the sum of its proper divisors (5796457137900).

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

2745690222420 is a wasteful number, since it uses less digits than its factorization.

2745690222420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5084611541 (or 5084611533 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 2745690222420 in words is "two trillion, seven hundred forty-five billion, six hundred ninety million, two hundred twenty-two thousand, four hundred twenty".