274431027661 has 8 divisors (see below), whose sum is σ = 313638635264. Its totient is φ = 235224213840.

The previous prime is 274431027649. The next prime is 274431027713. The reversal of 274431027661 is 166720134472.

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

It is not a de Polignac number, because 274431027661 - 2²³ = 274422639053 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 (274431027641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1190716 + ... + 1402378.

It is an arithmetic number, because the mean of its divisors is an integer number (39204829408).

Almost surely, 2^274431027661 is an apocalyptic number.

It is an amenable number.

274431027661 is a deficient number, since it is larger than the sum of its proper divisors (39207607603).

274431027661 is a wasteful number, since it uses less digits than its factorization.

274431027661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396891.

The product of its (nonzero) digits is 338688, while the sum is 43.

The spelling of 274431027661 in words is "two hundred seventy-four billion, four hundred thirty-one million, twenty-seven thousand, six hundred sixty-one".