61028620654 has 32 divisors (see below), whose sum is σ = 102099674880. Its totient is φ = 27189032832.

The previous prime is 61028620649. The next prime is 61028620699. The reversal of 61028620654 is 45602682016.

It is a congruent number.

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, 926167 + ... + 989869.

It is an arithmetic number, because the mean of its divisors is an integer number (3190614840).

Almost surely, 2^61028620654 is an apocalyptic number.

61028620654 is a deficient number, since it is larger than the sum of its proper divisors (41071054226).

61028620654 is a wasteful number, since it uses less digits than its factorization.

61028620654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65224.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 61028620654 in words is "sixty-one billion, twenty-eight million, six hundred twenty thousand, six hundred fifty-four".