619986054 has 16 divisors (see below), whose sum is σ = 1240958448. Its totient is φ = 206497632.

The previous prime is 619985963. The next prime is 619986061. The reversal of 619986054 is 450689916.

It is a junction number, because it is equal to n+sod(n) for n = 619985994 and 619986012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32797 + ... + 48120.

It is an arithmetic number, because the mean of its divisors is an integer number (77559903).

Almost surely, 2^619986054 is an apocalyptic number.

619986054 is an abundant number, since it is smaller than the sum of its proper divisors (620972394).

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

619986054 is a wasteful number, since it uses less digits than its factorization.

619986054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82199.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 619986054 is about 24899.5191519836. The cubic root of 619986054 is about 852.6955048498.

The spelling of 619986054 in words is "six hundred nineteen million, nine hundred eighty-six thousand, fifty-four".