42720374772 has 18 divisors (see below), whose sum is σ = 107987614098. Its totient is φ = 14240124912.

The previous prime is 42720374747. The next prime is 42720374789. The reversal of 42720374772 is 27747302724.

42720374772 is a `hidden beast` number, since 4 + 272 + 0 + 374 + 7 + 7 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 32831265636 + 9889109136 = 181194^2 + 99444^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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, 593338503 + ... + 593338574.

Almost surely, 2^42720374772 is an apocalyptic number.

It is an amenable number.

42720374772 is an abundant number, since it is smaller than the sum of its proper divisors (65267239326).

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

42720374772 is a wasteful number, since it uses less digits than its factorization.

42720374772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186677087 (or 1186677082 counting only the distinct ones).

The product of its (nonzero) digits is 921984, while the sum is 45.

It can be divided in two parts, 42720374 and 772, that added together give a triangular number (42721146 = T₉₂₄₃).

The spelling of 42720374772 in words is "forty-two billion, seven hundred twenty million, three hundred seventy-four thousand, seven hundred seventy-two".