1461229464278 has 16 divisors (see below), whose sum is σ = 2193063695856. Its totient is φ = 730208338080.

The previous prime is 1461229464259. The next prime is 1461229464281. The reversal of 1461229464278 is 8724649221641.

It is a super-2 number, since 2×1461229464278² (a number of 25 digits) contains 22 as substring.

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, 33171908 + ... + 33215928.

It is an arithmetic number, because the mean of its divisors is an integer number (137066480991).

Almost surely, 2^{1461229464278} is an apocalyptic number.

1461229464278 is a deficient number, since it is larger than the sum of its proper divisors (731834231578).

1461229464278 is a wasteful number, since it uses less digits than its factorization.

1461229464278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52879.

The product of its digits is 9289728, while the sum is 56.

The spelling of 1461229464278 in words is "one trillion, four hundred sixty-one billion, two hundred twenty-nine million, four hundred sixty-four thousand, two hundred seventy-eight".