61421626545234 has 64 divisors (see below), whose sum is σ = 133610460875136. Its totient is φ = 18745118198784.

The previous prime is 61421626545199. The next prime is 61421626545259. The reversal of 61421626545234 is 43254562612416.

It is a super-2 number, since 2×61421626545234² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18047677 + ... + 21179279.

It is an arithmetic number, because the mean of its divisors is an integer number (2087663451174).

Almost surely, 2^{61421626545234} is an apocalyptic number.

61421626545234 is an abundant number, since it is smaller than the sum of its proper divisors (72188834329902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61421626545234 is a wasteful number, since it uses less digits than its factorization.

61421626545234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3136859.

The product of its digits is 8294400, while the sum is 51.

The spelling of 61421626545234 in words is "sixty-one trillion, four hundred twenty-one billion, six hundred twenty-six million, five hundred forty-five thousand, two hundred thirty-four".