11346777778 has 32 divisors (see below), whose sum is σ = 19779701760. Its totient is φ = 4781442960.

The previous prime is 11346777763. The next prime is 11346777787. The reversal of 11346777778 is 87777764311.

It is a super-3 number, since 3×11346777778³ (a number of 31 digits) contains 333 as substring.

It is a plaindrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222043 + ... + 268321.

It is an arithmetic number, because the mean of its divisors is an integer number (618115680).

Almost surely, 2^11346777778 is an apocalyptic number.

11346777778 is a deficient number, since it is larger than the sum of its proper divisors (8432923982).

11346777778 is a wasteful number, since it uses less digits than its factorization.

11346777778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46582.

The product of its digits is 9680832, while the sum is 58.

The spelling of 11346777778 in words is "eleven billion, three hundred forty-six million, seven hundred seventy-seven thousand, seven hundred seventy-eight".