2783457157 has 8 divisors (see below), whose sum is σ = 3004341984. Its totient is φ = 2563539888.

The previous prime is 2783457143. The next prime is 2783457161. The reversal of 2783457157 is 7517543872.

It is a happy number.

2783457157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2783457157 - 2⁷ = 2783457029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2783457157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2783457167) 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, 235903 + ... + 247420.

It is an arithmetic number, because the mean of its divisors is an integer number (375542748).

Almost surely, 2^2783457157 is an apocalyptic number.

It is an amenable number.

2783457157 is a deficient number, since it is larger than the sum of its proper divisors (220884827).

2783457157 is a wasteful number, since it uses less digits than its factorization.

2783457157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483779.

The product of its digits is 1646400, while the sum is 49.

The square root of 2783457157 is about 52758.4794796059. The cubic root of 2783457157 is about 1406.6784914427.

The spelling of 2783457157 in words is "two billion, seven hundred eighty-three million, four hundred fifty-seven thousand, one hundred fifty-seven".