76390326544 has 45 divisors (see below), whose sum is σ = 172187988471. Its totient is φ = 32735394720.

The previous prime is 76390326541. The next prime is 76390326547. The reversal of 76390326544 is 44562309367.

The square root of 76390326544 is 276388.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (76390326541) and next prime (76390326547).

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76390326541) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7733929 + ... + 7743799.

Almost surely, 2^76390326544 is an apocalyptic number.

76390326544 is the 276388-th square number.

It is an amenable number.

76390326544 is an abundant number, since it is smaller than the sum of its proper divisors (95797661927).

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

76390326544 is an frugal number, since it uses more digits than its factorization.

76390326544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19764 (or 9880 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 49.

Multiplying 76390326544 by its sum of digits (49), we get a square (3743126000656 = 1934716²).

76390326544 divided by its sum of digits (49) gives a square (1558986256 = 39484²).

The spelling of 76390326544 in words is "seventy-six billion, three hundred ninety million, three hundred twenty-six thousand, five hundred forty-four".