7042378550 has 24 divisors (see below), whose sum is σ = 13119318792. Its totient is φ = 2812544000.

The previous prime is 7042378549. The next prime is 7042378559. The reversal of 7042378550 is 558732407.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 7042378498 and 7042378507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7042378559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77816 + ... + 141915.

It is an arithmetic number, because the mean of its divisors is an integer number (546638283).

Almost surely, 2^7042378550 is an apocalyptic number.

7042378550 is a deficient number, since it is larger than the sum of its proper divisors (6076940242).

7042378550 is a wasteful number, since it uses less digits than its factorization.

7042378550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220384 (or 220379 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 41.

The square root of 7042378550 is about 83918.8807718501. The cubic root of 7042378550 is about 1916.7837638184.

The spelling of 7042378550 in words is "seven billion, forty-two million, three hundred seventy-eight thousand, five hundred fifty".