76740001620 has 24 divisors (see below), whose sum is σ = 214872004704. Its totient is φ = 20464000416.

The previous prime is 76740001573. The next prime is 76740001621. The reversal of 76740001620 is 2610004767.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76740001621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639499954 + ... + 639500073.

It is an arithmetic number, because the mean of its divisors is an integer number (8953000196).

Almost surely, 2^76740001620 is an apocalyptic number.

It is an amenable number.

76740001620 is an abundant number, since it is smaller than the sum of its proper divisors (138132003084).

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

76740001620 is a wasteful number, since it uses less digits than its factorization.

76740001620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279000039 (or 1279000037 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The spelling of 76740001620 in words is "seventy-six billion, seven hundred forty million, one thousand, six hundred twenty".