121776039463 has 16 divisors (see below), whose sum is σ = 138882885120. Its totient is φ = 105777225216.

The previous prime is 121776039449. The next prime is 121776039467. The reversal of 121776039463 is 364930677121.

It is a happy number.

It is not a de Polignac number, because 121776039463 - 2²⁵ = 121742485031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121776039467) 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, 1250106 + ... + 1343992.

It is an arithmetic number, because the mean of its divisors is an integer number (8680180320).

Almost surely, 2^121776039463 is an apocalyptic number.

121776039463 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121776039463 is a deficient number, since it is larger than the sum of its proper divisors (17106845657).

121776039463 is a wasteful number, since it uses less digits than its factorization.

121776039463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99786.

The product of its (nonzero) digits is 1143072, while the sum is 49.

The spelling of 121776039463 in words is "one hundred twenty-one billion, seven hundred seventy-six million, thirty-nine thousand, four hundred sixty-three".