61942556428 has 6 divisors (see below), whose sum is σ = 108399473756. Its totient is φ = 30971278212.

The previous prime is 61942556371. The next prime is 61942556441. The reversal of 61942556428 is 82465524916.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7742819550 + ... + 7742819557.

Almost surely, 2^61942556428 is an apocalyptic number.

It is an amenable number.

61942556428 is a deficient number, since it is larger than the sum of its proper divisors (46456917328).

61942556428 is a wasteful number, since it uses less digits than its factorization.

61942556428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15485639111 (or 15485639109 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 52.

The spelling of 61942556428 in words is "sixty-one billion, nine hundred forty-two million, five hundred fifty-six thousand, four hundred twenty-eight".