2978547742 has 8 divisors (see below), whose sum is σ = 4552120296. Its totient is φ = 1461174312.

The previous prime is 2978547731. The next prime is 2978547757. The reversal of 2978547742 is 2477458792.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14049648 + ... + 14049859.

It is an arithmetic number, because the mean of its divisors is an integer number (569015037).

Almost surely, 2^2978547742 is an apocalyptic number.

2978547742 is a deficient number, since it is larger than the sum of its proper divisors (1573572554).

2978547742 is a wasteful number, since it uses less digits than its factorization.

2978547742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28099562.

The product of its digits is 7902720, while the sum is 55.

The square root of 2978547742 is about 54576.0729807486. The cubic root of 2978547742 is about 1438.8036201758.

The spelling of 2978547742 in words is "two billion, nine hundred seventy-eight million, five hundred forty-seven thousand, seven hundred forty-two".