61437426020 has 48 divisors (see below), whose sum is σ = 130593835008. Its totient is φ = 24276591360.

The previous prime is 61437426013. The next prime is 61437426031. The reversal of 61437426020 is 2062473416.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 539915 + ... + 643725.

It is an arithmetic number, because the mean of its divisors is an integer number (2720704896).

Almost surely, 2^61437426020 is an apocalyptic number.

It is an amenable number.

61437426020 is an abundant number, since it is smaller than the sum of its proper divisors (69156408988).

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

61437426020 is a wasteful number, since it uses less digits than its factorization.

61437426020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104180 (or 104178 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

Adding to 61437426020 its reverse (2062473416), we get a palindrome (63499899436).

The spelling of 61437426020 in words is "sixty-one billion, four hundred thirty-seven million, four hundred twenty-six thousand, twenty".