34927639021521 has 9 divisors (see below), whose sum is σ = 50451059752041. Its totient is φ = 23285080861092.

The previous prime is 34927639021507. The next prime is 34927639021547. The reversal of 34927639021521 is 12512093672943.

It is a happy number.

The square root of 34927639021521 is 5909961.

It is a perfect power (a square), and thus also a powerful number.

34927639021521 is a `hidden beast` number, since 3 + 4 + 9 + 2 + 7 + 6 + 3 + 90 + 21 + 521 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 34927639021521 - 2⁵ = 34927639021489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (34927639021591) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16744890 + ... + 18714876.

Almost surely, 2^{34927639021521} is an apocalyptic number.

34927639021521 is the 5909961-st square number.

34927639021521 is the 2954981-st centered octagonal number.

It is an amenable number.

34927639021521 is a deficient number, since it is larger than the sum of its proper divisors (15523420730520).

34927639021521 is an frugal number, since it uses more digits than its factorization.

34927639021521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3939980 (or 1969990 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The spelling of 34927639021521 in words is "thirty-four trillion, nine hundred twenty-seven billion, six hundred thirty-nine million, twenty-one thousand, five hundred twenty-one".