101777078742 has 8 divisors (see below), whose sum is σ = 203554157496. Its totient is φ = 33925692912.

The previous prime is 101777078713. The next prime is 101777078743. The reversal of 101777078742 is 247870777101.

It is a happy number.

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

101777078742 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101777078743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8481423223 + ... + 8481423234.

It is an arithmetic number, because the mean of its divisors is an integer number (25444269687).

Almost surely, 2^101777078742 is an apocalyptic number.

101777078742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

101777078742 is a wasteful number, since it uses less digits than its factorization.

101777078742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16962846462.

The product of its (nonzero) digits is 1075648, while the sum is 51.

The spelling of 101777078742 in words is "one hundred one billion, seven hundred seventy-seven million, seventy-eight thousand, seven hundred forty-two".