61678401235 has 16 divisors (see below), whose sum is σ = 81000620640. Its totient is φ = 44713693440.

The previous prime is 61678401227. The next prime is 61678401241. The reversal of 61678401235 is 53210487616.

It is not a de Polignac number, because 61678401235 - 2³ = 61678401227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61678401191 and 61678401200.

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, 1774200 + ... + 1808629.

It is an arithmetic number, because the mean of its divisors is an integer number (5062538790).

Almost surely, 2^61678401235 is an apocalyptic number.

61678401235 is a deficient number, since it is larger than the sum of its proper divisors (19322219405).

61678401235 is a wasteful number, since it uses less digits than its factorization.

61678401235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3583158.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 61678401235 in words is "sixty-one billion, six hundred seventy-eight million, four hundred one thousand, two hundred thirty-five".