7776401073 has 16 divisors (see below), whose sum is σ = 12473425920. Its totient is φ = 4209780816.

The previous prime is 7776401071. The next prime is 7776401099. The reversal of 7776401073 is 3701046777.

It is not a de Polignac number, because 7776401073 - 2¹ = 7776401071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7776401071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9744465 + ... + 9745262.

It is an arithmetic number, because the mean of its divisors is an integer number (779589120).

Almost surely, 2^7776401073 is an apocalyptic number.

It is an amenable number.

7776401073 is a deficient number, since it is larger than the sum of its proper divisors (4697024847).

7776401073 is a wasteful number, since it uses less digits than its factorization.

7776401073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19489756.

The product of its (nonzero) digits is 172872, while the sum is 42.

The square root of 7776401073 is about 88183.9048409629. The cubic root of 7776401073 is about 1981.1904103218.

The spelling of 7776401073 in words is "seven billion, seven hundred seventy-six million, four hundred one thousand, seventy-three".