61027528007 has 4 divisors (see below), whose sum is σ = 61097115576. Its totient is φ = 60957940440.

The previous prime is 61027527971. The next prime is 61027528031. The reversal of 61027528007 is 70082572016.

61027528007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 61027528007 - 2²² = 61023333703 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 (61027518007) 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, 34792469 + ... + 34794222.

It is an arithmetic number, because the mean of its divisors is an integer number (15274278894).

Almost surely, 2^61027528007 is an apocalyptic number.

61027528007 is a deficient number, since it is larger than the sum of its proper divisors (69587569).

61027528007 is an equidigital number, since it uses as much as digits as its factorization.

61027528007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69587568.

The product of its (nonzero) digits is 47040, while the sum is 38.

The spelling of 61027528007 in words is "sixty-one billion, twenty-seven million, five hundred twenty-eight thousand, seven".