61900008842 has 32 divisors (see below), whose sum is σ = 106826428800. Its totient is φ = 26351094528.

The previous prime is 61900008809. The next prime is 61900008851. The reversal of 61900008842 is 24880000916.

61900008842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61900008842² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61900008796 and 61900008805.

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, 1344134 + ... + 1389422.

It is an arithmetic number, because the mean of its divisors is an integer number (3338325900).

Almost surely, 2^61900008842 is an apocalyptic number.

61900008842 is a deficient number, since it is larger than the sum of its proper divisors (44926419958).

61900008842 is a wasteful number, since it uses less digits than its factorization.

61900008842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45950.

The product of its (nonzero) digits is 27648, while the sum is 38.

The spelling of 61900008842 in words is "sixty-one billion, nine hundred million, eight thousand, eight hundred forty-two".