61301398380 has 24 divisors (see below), whose sum is σ = 171643915632. Its totient is φ = 16347039552.

The previous prime is 61301398357. The next prime is 61301398397. The reversal of 61301398380 is 8389310316.

It is a super-2 number, since 2×61301398380² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510844927 + ... + 510845046.

It is an arithmetic number, because the mean of its divisors is an integer number (7151829818).

Almost surely, 2^61301398380 is an apocalyptic number.

61301398380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61301398380 is an abundant number, since it is smaller than the sum of its proper divisors (110342517252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61301398380 is a wasteful number, since it uses less digits than its factorization.

61301398380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021689985 (or 1021689983 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The spelling of 61301398380 in words is "sixty-one billion, three hundred one million, three hundred ninety-eight thousand, three hundred eighty".