61373270040 has 64 divisors (see below), whose sum is σ = 185137112160. Its totient is φ = 16275778560.

The previous prime is 61373270029. The next prime is 61373270083. The reversal of 61373270040 is 4007237316.

It is a junction number, because it is equal to n+sod(n) for n = 61373269983 and 61373270010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1391109 + ... + 1434548.

Almost surely, 2^61373270040 is an apocalyptic number.

61373270040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61373270040 is an abundant number, since it is smaller than the sum of its proper divisors (123763842120).

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

61373270040 is a wasteful number, since it uses less digits than its factorization.

61373270040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2825852 (or 2825848 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 33.

The spelling of 61373270040 in words is "sixty-one billion, three hundred seventy-three million, two hundred seventy thousand, forty".