61534030650623 has 4 divisors (see below), whose sum is σ = 61542169003728. Its totient is φ = 61525892297520.

The previous prime is 61534030650551. The next prime is 61534030650637. The reversal of 61534030650623 is 32605603043516.

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 61534030650623 - 2¹⁴ = 61534030634239 is a prime.

It is a super-2 number, since 2×61534030650623² (a number of 28 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 (61534030650023) 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, 4069165211 + ... + 4069180332.

It is an arithmetic number, because the mean of its divisors is an integer number (15385542250932).

Almost surely, 2^{61534030650623} is an apocalyptic number.

61534030650623 is a deficient number, since it is larger than the sum of its proper divisors (8138353105).

61534030650623 is an equidigital number, since it uses as much as digits as its factorization.

61534030650623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8138353104.

The product of its (nonzero) digits is 1166400, while the sum is 44.

The spelling of 61534030650623 in words is "sixty-one trillion, five hundred thirty-four billion, thirty million, six hundred fifty thousand, six hundred twenty-three".