7266073978 has 8 divisors (see below), whose sum is σ = 10938458772. Its totient is φ = 3619921056.

The previous prime is 7266073967. The next prime is 7266073999. The reversal of 7266073978 is 8793706627.

It can be written as a sum of positive squares in 2 ways, for example, as 7042062889 + 224011089 = 83917^2 + 14967^2 .

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

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, 6557275 + ... + 6558382.

Almost surely, 2^7266073978 is an apocalyptic number.

7266073978 is a deficient number, since it is larger than the sum of its proper divisors (3672384794).

7266073978 is a wasteful number, since it uses less digits than its factorization.

7266073978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13115936.

The product of its (nonzero) digits is 5334336, while the sum is 55.

The square root of 7266073978 is about 85241.2692186126. The cubic root of 7266073978 is about 1936.8676182350.

The spelling of 7266073978 in words is "seven billion, two hundred sixty-six million, seventy-three thousand, nine hundred seventy-eight".