61871040223510 has 64 divisors (see below), whose sum is σ = 131389640515584. Its totient is φ = 20527648819200.

The previous prime is 61871040223493. The next prime is 61871040223529. The reversal of 61871040223510 is 1532204017816.

It is a congruent number.

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, 44959414 + ... + 46315126.

It is an arithmetic number, because the mean of its divisors is an integer number (2052963133056).

Almost surely, 2^{61871040223510} is an apocalyptic number.

61871040223510 is an abundant number, since it is smaller than the sum of its proper divisors (69518600292074).

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

61871040223510 is a wasteful number, since it uses less digits than its factorization.

61871040223510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376789.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 61871040223510 in words is "sixty-one trillion, eight hundred seventy-one billion, forty million, two hundred twenty-three thousand, five hundred ten".