92774137628021 has 4 divisors (see below), whose sum is σ = 98231439841452. Its totient is φ = 87316835414592.

The previous prime is 92774137627909. The next prime is 92774137628057. The reversal of 92774137628021 is 12082673147729.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 71706854640100 + 21067282987921 = 8467990^2 + 4589911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-92774137628021 is a prime.

It is a super-2 number, since 2×92774137628021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (92774137621021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2728651106690 + ... + 2728651106723.

It is an arithmetic number, because the mean of its divisors is an integer number (24557859960363).

Almost surely, 2^{92774137628021} is an apocalyptic number.

It is an amenable number.

92774137628021 is a deficient number, since it is larger than the sum of its proper divisors (5457302213431).

92774137628021 is a wasteful number, since it uses less digits than its factorization.

92774137628021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5457302213430.

The product of its (nonzero) digits is 14224896, while the sum is 59.

The spelling of 92774137628021 in words is "ninety-two trillion, seven hundred seventy-four billion, one hundred thirty-seven million, six hundred twenty-eight thousand, twenty-one".