61406311213504 has 56 divisors (see below), whose sum is σ = 122216856637680. Its totient is φ = 30611619526656.

The previous prime is 61406311213501. The next prime is 61406311213523. The reversal of 61406311213504 is 40531211360416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61406311213501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35989434 + ... + 37657030.

It is an arithmetic number, because the mean of its divisors is an integer number (2182443868530).

Almost surely, 2^{61406311213504} is an apocalyptic number.

61406311213504 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

61406311213504 is a deficient number, since it is larger than the sum of its proper divisors (60810545424176).

61406311213504 is a wasteful number, since it uses less digits than its factorization.

61406311213504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669325 (or 1669315 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 61406311213504 in words is "sixty-one trillion, four hundred six billion, three hundred eleven million, two hundred thirteen thousand, five hundred four".