77977053320106 has 64 divisors (see below), whose sum is σ = 169075593710208. Its totient is φ = 23885004853248.

The previous prime is 77977053320083. The next prime is 77977053320129. The reversal of 77977053320106 is 60102335077977.

It is an interprime number because it is at equal distance from previous prime (77977053320083) and next prime (77977053320129).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49715205 + ... + 51259688.

It is an arithmetic number, because the mean of its divisors is an integer number (2641806151722).

Almost surely, 2^{77977053320106} is an apocalyptic number.

77977053320106 is an abundant number, since it is smaller than the sum of its proper divisors (91098540390102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77977053320106 is a wasteful number, since it uses less digits than its factorization.

77977053320106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100975095.

The product of its (nonzero) digits is 11668860, while the sum is 57.

The spelling of 77977053320106 in words is "seventy-seven trillion, nine hundred seventy-seven billion, fifty-three million, three hundred twenty thousand, one hundred six".