61486708741920 has 384 divisors, whose sum is σ = 268305639598080. Its totient is φ = 12776458890240.

The previous prime is 61486708741891. The next prime is 61486708741949. The reversal of 61486708741920 is 2914780768416.

61486708741920 is a `hidden beast` number, since 6 + 1 + 486 + 70 + 8 + 74 + 19 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (61486708741891) and next prime (61486708741949).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 92089662 + ... + 92754941.

It is an arithmetic number, because the mean of its divisors is an integer number (698712603120).

Almost surely, 2^{61486708741920} is an apocalyptic number.

61486708741920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61486708741920 is an abundant number, since it is smaller than the sum of its proper divisors (206818930856160).

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

61486708741920 is a wasteful number, since it uses less digits than its factorization.

61486708741920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184844645 (or 184844631 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 63.

The spelling of 61486708741920 in words is "sixty-one trillion, four hundred eighty-six billion, seven hundred eight million, seven hundred forty-one thousand, nine hundred twenty".