61970006767 has 4 divisors (see below), whose sum is σ = 62211135456. Its totient is φ = 61728878080.

The previous prime is 61970006717. The next prime is 61970006773. The reversal of 61970006767 is 76760007916.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61970006767 - 2¹⁹ = 61969482479 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61970006767.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61970006717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120563959 + ... + 120564472.

It is an arithmetic number, because the mean of its divisors is an integer number (15552783864).

Almost surely, 2^61970006767 is an apocalyptic number.

61970006767 is a deficient number, since it is larger than the sum of its proper divisors (241128689).

61970006767 is a wasteful number, since it uses less digits than its factorization.

61970006767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241128688.

The product of its (nonzero) digits is 666792, while the sum is 49.

The spelling of 61970006767 in words is "sixty-one billion, nine hundred seventy million, six thousand, seven hundred sixty-seven".