61427523221460 has 144 divisors (see below), whose sum is σ = 207594136818432. Its totient is φ = 14574679891200.

The previous prime is 61427523221437. The next prime is 61427523221483. The reversal of 61427523221460 is 6412232572416.

61427523221460 is a `hidden beast` number, since 6 + 1 + 4 + 275 + 232 + 2 + 146 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (61427523221437) and next prime (61427523221483).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 329949511 + ... + 330135630.

It is an arithmetic number, because the mean of its divisors is an integer number (1441625950128).

Almost surely, 2^{61427523221460} is an apocalyptic number.

61427523221460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61427523221460 is an abundant number, since it is smaller than the sum of its proper divisors (146166613596972).

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

61427523221460 is a wasteful number, since it uses less digits than its factorization.

61427523221460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660085214 (or 660085209 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

Adding to 61427523221460 its reverse (6412232572416), we get a palindrome (67839755793876).

The spelling of 61427523221460 in words is "sixty-one trillion, four hundred twenty-seven billion, five hundred twenty-three million, two hundred twenty-one thousand, four hundred sixty".