120913772638 has 16 divisors (see below), whose sum is σ = 182981391120. Its totient is φ = 59921118400.

The previous prime is 120913772599. The next prime is 120913772641. The reversal of 120913772638 is 836277319021.

It is a junction number, because it is equal to n+sod(n) for n = 120913772591 and 120913772600.

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, 73273 + ... + 497188.

It is an arithmetic number, because the mean of its divisors is an integer number (11436336945).

Almost surely, 2^120913772638 is an apocalyptic number.

120913772638 is a deficient number, since it is larger than the sum of its proper divisors (62067618482).

120913772638 is a wasteful number, since it uses less digits than its factorization.

120913772638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571403.

The product of its (nonzero) digits is 762048, while the sum is 49.

The spelling of 120913772638 in words is "one hundred twenty billion, nine hundred thirteen million, seven hundred seventy-two thousand, six hundred thirty-eight".