61383021562454 has 12 divisors (see below), whose sum is σ = 97809278303724. Its totient is φ = 28886127793824.

The previous prime is 61383021562439. The next prime is 61383021562481. The reversal of 61383021562454 is 45426512038316.

It is a super-2 number, since 2×61383021562454² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53099499044 + ... + 53099500199.

It is an arithmetic number, because the mean of its divisors is an integer number (8150773191977).

Almost surely, 2^{61383021562454} is an apocalyptic number.

61383021562454 is a deficient number, since it is larger than the sum of its proper divisors (36426256741270).

61383021562454 is a wasteful number, since it uses less digits than its factorization.

61383021562454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106198999279 (or 106198999262 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 50.

The spelling of 61383021562454 in words is "sixty-one trillion, three hundred eighty-three billion, twenty-one million, five hundred sixty-two thousand, four hundred fifty-four".