61421467248 has 240 divisors, whose sum is σ = 182759016960. Its totient is φ = 19216243200.

The previous prime is 61421467229. The next prime is 61421467267. The reversal of 61421467248 is 84276412416.

61421467248 is a `hidden beast` number, since 6 + 142 + 1 + 467 + 2 + 48 = 666.

It is an interprime number because it is at equal distance from previous prime (61421467229) and next prime (61421467267).

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, 63255403 + ... + 63256373.

It is an arithmetic number, because the mean of its divisors is an integer number (761495904).

Almost surely, 2^61421467248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61421467248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91379508480).

61421467248 is an abundant number, since it is smaller than the sum of its proper divisors (121337549712).

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

61421467248 is a wasteful number, since it uses less digits than its factorization.

61421467248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348 (or 1339 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The spelling of 61421467248 in words is "sixty-one billion, four hundred twenty-one million, four hundred sixty-seven thousand, two hundred forty-eight".