61489699022870 has 16 divisors (see below), whose sum is σ = 110686757676768. Its totient is φ = 24594701956800.

The previous prime is 61489699022863. The next prime is 61489699022893. The reversal of 61489699022870 is 7822099698416.

It is a junction number, because it is equal to n+sod(n) for n = 61489699022794 and 61489699022803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146987231 + ... + 147404970.

It is an arithmetic number, because the mean of its divisors is an integer number (6917922354798).

Almost surely, 2^{61489699022870} is an apocalyptic number.

61489699022870 is a deficient number, since it is larger than the sum of its proper divisors (49197058653898).

61489699022870 is a wasteful number, since it uses less digits than its factorization.

61489699022870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294413095.

The product of its (nonzero) digits is 188116992, while the sum is 71.

The spelling of 61489699022870 in words is "sixty-one trillion, four hundred eighty-nine billion, six hundred ninety-nine million, twenty-two thousand, eight hundred seventy".