61258258254 has 16 divisors (see below), whose sum is σ = 124345122048. Its totient is φ = 20114651832.

The previous prime is 61258258249. The next prime is 61258258261. The reversal of 61258258254 is 45285285216.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76191462 + ... + 76192265.

It is an arithmetic number, because the mean of its divisors is an integer number (7771570128).

Almost surely, 2^61258258254 is an apocalyptic number.

61258258254 is an abundant number, since it is smaller than the sum of its proper divisors (63086863794).

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

61258258254 is a wasteful number, since it uses less digits than its factorization.

61258258254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152383799.

The product of its digits is 1536000, while the sum is 48.

The spelling of 61258258254 in words is "sixty-one billion, two hundred fifty-eight million, two hundred fifty-eight thousand, two hundred fifty-four".