2742465781 has 8 divisors (see below), whose sum is σ = 2995187328. Its totient is φ = 2490312000.

The previous prime is 2742465779. The next prime is 2742465787. The reversal of 2742465781 is 1875642472.

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

It is not a de Polignac number, because 2742465781 - 2¹ = 2742465779 is a prime.

It is a super-2 number, since 2×2742465781² = 15042237119911879922, which 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 (2742465787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131805 + ... + 151186.

It is an arithmetic number, because the mean of its divisors is an integer number (374398416).

Almost surely, 2^2742465781 is an apocalyptic number.

It is an amenable number.

2742465781 is a deficient number, since it is larger than the sum of its proper divisors (252721547).

2742465781 is a wasteful number, since it uses less digits than its factorization.

2742465781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283883.

The product of its digits is 752640, while the sum is 46.

The square root of 2742465781 is about 52368.5571789027. The cubic root of 2742465781 is about 1399.7390297576.

The spelling of 2742465781 in words is "two billion, seven hundred forty-two million, four hundred sixty-five thousand, seven hundred eighty-one".